How to enter the engineering menu. Engineering menu Android and secret phone codes: how to log in and what can be configured

Access to the engineering menu of your Android smartphone is an additional gadget management.

In addition, it is a real opportunity to change "Unchanging settings", Enable blocked, but laid by the developer function, and really improve (or spoil with ineptive intervention) your gadget.

Engineering menu - what is it

Engineering menu and hidden settings Present in the very first phones!

It gave and enables developers to customize and test gadgets in the most unusual modes.

True, the majority are designed for smartphones and tablets based on MediaTek processor.

You should not forget that if applications incorrectly work, you can nourish problems, much more than the problem of getting into the engineering menu, so be careful.

In addition, it is not a fact that the first application you chose will work correctly on your smartphone.

Therefore, most likely you will have to download and install several options before you find what is suitable for you.

What options are available to configure in the engineering menu

Of course, different smartphones design and menu functions may differ.

Therefore, coming to this function, you can detect several different options and menu items from different phones.

Therefore, for example, the device on Qualcomm Snapdragon. The possibilities will be quite scanty and everything will be limited only to viewing various parameters and their testing.

At the same time, smartphones based on MediaTek features will be much wider.

At the same time, remember that these settings are not afraid by the developer.

By changing them, you must be aware of what you are doing, otherwise it may end well for your gadget.

Important! Take yourself a rule, never change the settings whose value you do not know or are not sure how it will affect the operation of the device. Otherwise, you risk spoiling yourself a mood for a long time.

Information that can be obtained thanks to the menu

Basic data available on any type of smartphone:

Imei phone - Personal identification (unique) device number.

Phone number - sometimes not specified;

Net - your operator;

Roaming - Are you roaming;

Network information - Do you and whether you are included and whether the network is included;

Call redirection - is it used at the moment;

Network type, network index;

Volume signal.

Coordinates of your location.

There is also a section "On Battery", it will have such data:

1 condition - Whether the battery is charged at the moment or not.

2 The level of charge - In percentage ratio, charge / discharge.

4 Battery Type - production technology

5 The time passed since the last charge.

In addition to this information, the engineering menu may contain much more than different useful data, depending on the type of menu provided by the developers.

Testing a smartphone with the features of Engineering Mode

It often happens that with all the correct visible settings, the phone works incorrectly.

The speed of processes does not correspond to the declared parameters, the amount of used random access memory Less than it should be, refuses to work or install allowable applications, as well as the absence of appropriate functions.

And the standard user menu does not allow any possibility to detect the cause of such problems.

The engineering menu makes it possible to carry out deep testing of the system and the device itself for hidden work disorders or incorrectly set parameters.

Modes are available:

1 General (Automatic Test) - with this test, each parameter of the smartphone will be tested;

2 REPORT - the full test report is displayed;

3 Testing all functional modules, processor, memory cards and SIM cards, vibrations, speakers, microphone, connectors - literally everything is stupid the phone can be checked for adequate work.

4 Screen tests - parameters such as brightness, clarity, sensitivity, reaction rate, visualization and touchscreen;

5 Testing work Gyro, cameras, accelerometers, outbreaks, and much more.

This is how the test mode looks like.

To open it, you need to go into the appropriate section (most often "Testing" or like that).

This is only a small tolik of what can provide for testing the engineering menu, while it should be expected from different phones will be various testing tools and the objects of the test objects will differ.

However, the benefit of such opportunities is difficult to overestimate.

Such testing can help understand whether the settings change in solving one or another problem, Or need.

And there may be a problem at the level of physical breakdown, and it makes sense, for example, replace the part.

Also, a similar test will be worth it when buying a device of ex-in use.

Thus, you can immediately detect non-working or working modules with errors and it is worth buying a gadget or not.

Consider examples of using the mode.

Sound volume setting (Audio)

Thanks to the engineering menu, you can change the volume settings for the speaker of the external loudspeaker, the dynamics of the ear phone, access to the headphones, and that is not a small microphone.

However, it should also be guided by a real need, for example, if you are told that you are badly audible (because of the loud noise in the microphone, or because of the fact that it's not adding the volume of the sound, namely you can be heard quietly, others are heard well , namely you quietly).

Then it makes sense to change the microphone settings.

Otherwise, if your microphone works well, you risk spoil people with pleasure from communicating with you by phone by changing the microphone setting, the result of which you yourself do not hear.

To customize the sound, do this:

1 Enter the menu and select the tab. Hardware Testing, then Audio. Select the desired mode. They are as follows:

Normal Mode. - the sound mode of the main dynamics of the phone (which is near the ear);
Headset Mode. - adjustment of the volume of the headphone volume;
Loudspeaker. - the volume of the external speaker - the loudspeaker that is used during the speakerphone;
Headset_loudspeaker Mode. - This is the sound level in mode when headphones and loudspeaker work simultaneously.

2 Select from the list of tabs, the settings of which device you need. Again, there are such options:

This option is very hard, therefore it is better not to change it.

After improper setup, the phone can start hearing itself, as a result, noise, whistling or unpleasant echo may appear.

So you or your interlocutor will begin to hear yourself during the conversation.

Line "LEVEL" This is the parameter value of each step of the volume setting in the standard menu. The ideal parameter is 0. It is better not to touch, since this parameter is rarely knocked down or is incorrectly configured.
"Value IS" And here is the parameter of each volume step of the external loudspeaker (ring tone);
Line "MAX VOL", And there is one parameter that sets the top threshold of sound, that is, the maximum volume that can be set on the phone simply by adding a sound to a maximum, for example, during a conversation.

Setting cellular parameters

In this case, we will configure frequencies.

If you do not know what parameters cellular communication Uses your operator, the changes in this window can lead to loss of communication, so it is better to allow the phone to automatically select frequencies for communication.

However, the removal of ticks on unused frequencies gives a small bonus to energy savings.

At the same time, if your phone is designed for another region and the manufacturer initially did not appoint the frequencies you need, then this menu will just help you turn them on.

Attention! There were precedents of criminal prosecution for the unauthorized change of IMEI numbers. Moreover, the punishment can be both a fine and suspended sentence, criminal record and in some cases even conclusion inprison!

Special Android codes

In addition to the engineering menu, there are also different secret codesHelping in managing the parameters of your phone.

Fig. 8. Special codes on Android OS

Opportunities to manage and modify settings - unconditional advantage.

But let's not forget that they are no wonder they are hidden and designed for those who know what it does.

After all, we do not have access to the parameters of the laws of physics of our universe?

Who knows what would lead to what we would have the opportunity to change the strength of the water or boiling water? It is alarming, isn't it?

Use power carefully.

Often in chinese (yes for sure and not only chinese) phones on android database In the engineering menu there are far from being exhibited optimal settings Volume speakers, headsets (headphones) and microphone, fix them and consider in this article.

How to get to the engineering menu of the phone based on android

To get to the engineering menu, open the number of numbers and enter special code: *#*#3646633#*#*

Also on some android versions may work as a team # 15963 # * and * # * # 4636 # * # *

If your phone's processor is not MTK, then different options are possible.

I will give me codes famous for the opening of the engineering menu on different phones and tablets:

*#*#54298#*#* or *#*#3646633#*#* - Smartphones based on the MTK processor

*#*#8255#*#* or *#*#4636#*#* -Smartphones Samsung

*#*#3424#*#* or *#*#4636#*#* or *#*#8255#*#* - Smartphones HTC.

*#*#7378423#*#* - Sony smartphones

*#*#3646633#*#* – smartphones texet., Fly, Alcatel,

*#*#3338613#*#* or *#*#13411#*#* — smartphones Fly, Alcatel, Philips

*#*#2846579#*#* or *#*#2846579159#*#* - Huawei smartphones

*#*#2237332846633#*#* - devices from Acer

Immediately after entering, the command should disappear and open the engineering menu. But on some devices it will still be necessary to press the "Call" key.

A list of sections of the engineering menu of the phone will appear.

Just in case, take a notebook and handle and set the settings that were set on your phone to your intervention. Little, anything happens.

On my phone (based on MTK processor) to get to the engineering menu I had to install a free utility (program) from Google Play. « Mobileuncle MTK Tools."That opens access to the engineering menu (that is, it works similarly to the magic combination set * # 3646633 # * # *).

I am sure that you will find free Apps And for other phones.

Speaker Settings, Headset (Headphones) and Phone Microphone through Engineering Menu

For clarity, we will briefly analyze the adjustment of the volume of the machine:

We go into the program or recruit a magic combination to enter the engineering menu. Next, in the menu that opens, choose the section " Engineer Mode.»

A section will open in which you can select the engineering menu of the Android system (skip it), and the engineering menu of the phone itself.

We need an engineering menu of the phone, so select the "Engineer Mode (MTK) section". This item is encountered in the drawing with a red marker.

A very long menu will open through which you can access almost any phone settings. But not enough to get to them, you need to know how to manage them.

Therefore, do not change what you have no idea.

At the worst, write down the parameters that were before your intervention to return it back. We continue!

Since it is interesting for us to configure the sound level, select the "Audio" item, I covered it with a red marker.

And ... Magic! The settings of the speaker and microphone parameters settings are open.

And actually why we climbed into this menu? Something does not work so from curiosity? Okay, continue to understand!

It is worth lingering and figure out what all these menu items mean.

Normal Mode. (Settings section in normal or normal mode) - such an active mode when nothing is connected to the smartphone;

Headset Mode. (headset mode) - this mode is activated after connecting headphones or external columns;

Loudspeaker Mode. (speaker mode) - It is activated when nothing is connected to the phone or tablet, and you turn on a loud connection during a call on the phone;

Headset_loudspeaker Mode. (the loudspeaker mode when the headset is connected) - this mode is activated if you connect headphones or external speakers to the phone or tablet, and you turn on a loud connection while talking on the phone;

Speech Enhancement (Talk mode by phone) - this mode is activated in normal mode of talking by phone, and it is not connected to it (headset, external speakers) and the speakerphone is not enabled.

Debug info - It is not clear for what - information on the backup of information or its debugging;

Speech Logger. - I did not fully understand, most likely, logging during negotiations or recording a conversation. If you check the box next to "Enable Speech Log", then after completion phone call In the root directory of the memory card, appropriate files are created. Their name and structure gets the following form: the day of the week_mets_nity__nd_mintes_sekunds (for example, Friday_yul_2016__Trem17_12_53.pcm).

Why serve these files and how they can come in handy - incomprehensible. The / sdcard / voip_debuginfo directory (which is the storage location with information on the backup) - it is not automatically created if you create it manually, then after the conversation it will remain empty.

Audio Logger. - Used to record sound that supports quick search, playback and saving it.

When entering any of the modes, you will be available various settings Volume (Type). Here is a list of basic settings you need to know:

SIP - settings for Internet calls;
MIC - microphone sensitivity settings;
SPH - Configure speaker settings (that we apply in the ears);
SPH2 - settings of the second conversational speaker (I do not have it in the phone);
SID - we skip, when changing these parameters, during the negotiations on your smartphone or tablet, you can hear yourself instead of the interlocutor;
Media - setting the volume of the multimedia;
Ring - Setting the volume level incoming call;
FMR - FM Radio Volume Settings.

Under the settings item, a list of volume levels (LEVEL) is available (see Figure).

Such levels are usually 7, from Level 0 to Level 6. Each such level corresponds to one click on the volume of the volume of the volume of your smartphone or tablet.

Thus, Level 0 is the most quiet level, and LEVEL 6 is the most loud level of the signal. Please note each level you can assign your values \u200b\u200bthat are in the Value IS 0 ~ 255 cell. They should not go beyond the range from 0 to 255 (the lower the value, the quiet volume).

To change this parameter, you need to erase the old value in the cell and write a new one, and after pressing the "SET" button (that next to the cell) for assignment.

At the end, the MAX VOL section is seen below. 0 ~ 255 (on my smartphone, such as Max Vol. 0 ~ 255, it all depends on the manufacturer). This item sets the maximum volume of the volume level, it is one to all LEVEL.

Dear friends. The name of the items may differ on different models. This is the MTK platform, so be prepared that you have to strain the brain and search for compliance in your menu. I have a jiayu g3 phone.

I had changed immediately, but perhaps someone will need to restart the phone so that they come into force.

Although, it seems, you should not break anything and if the changes do not like to always enter the old value ..
But still..
All changes you make at your own risk !!! Do not forget to turn on the thinking!

P.S.:This on the phone discovered the font size setting. It turns out you can still increase!
P.P.S.: If something is still not clear, then here is the video to set the sound in the engineering menu:

Probably, many smartphone owners faced the volume of volume. For example, I was not satisfied with two things. The first is the quiet sound of the speaker with an incoming call, and the second is a very loud sound in the headphones at the input call.

A little about how Android is listed

If no headset is connected to your gadget (headphones, free hands, etc.), then the volume settings will be alone, and as soon as you connect the headset - the settings will become different. For a general understanding, I will tell you several examples.

Example 1. You listen to music on the phone, turned on a loud speaker at full power, and when you connect the headset to it and turn on the loud speaker again, then the volume may differ (can be louder or lower, depending on which model is the phone or firmware version).

Example 2. You are watching the headphones in the headphone volume (meaning the volume of the multimedia) put up by 40% and then after a while you have an incoming call, then the volume in the headphones will change on the overall volume, in which case you can get a powerful sound blow on the ears. Believe me, I have repeatedly undermined from the sofa in such cases, the fact is that the programmers well configured the volume modes.

Example 3. You are talking on the phone and you need to go into speaker mode, and you notice that the speaker is not so loud (or vice versa), as when listening to music; Or the partner has become bad to hear you, this is because in different modes the microphone may have different sensitivity. Also, when the headset is connected in the same situation and turn on the speakerphone mode - again other settings. This is how Android is driven by volume.

Know the theory of engineering menu

So let's look at what and how can be done if you have a little piercing over the "engineering menu".

Before you make some changes, we recommend fully reading the article, and comprehend, and then experiment. Also take a piece of paper and write down all the values \u200b\u200bthat stood by default, in case something goes wrong. You can run the engineering menu using the phone set: we prescribe the following combinations on it (Fig. 1):

picture 1

# * # * # * # * # * # * # * - Smartphones based on MTK processor?

* # * # * # * -Smartphones samsung

# * # * # * # * # * # 8255 # * # * - HTC smartphones

* # * # * - Sony smartphones

# * # * # * - Smartphones Fly, Alcatel, Philips

* # * # * - Huawei smartphones

Congratulations, you got to the engineering menu (Fig. 2). Keep in mind that menu on different phones can differ slightly in structure. We find the section "Audio" and go to it. After entering, we see a bunch of unknown strings (modes) (Fig. 3). Here, what do these modes mean Android:

figure 2 Figure 3

— Normal Mode. (Settings section in normal or normal mode) - such an active mode when nothing is connected to the smartphone;

— Headset Mode. (headset mode) - this mode is activated after connecting headphones or external columns;

— Loudspeaker Mode. (loud mode) - it is activated when nothing is connected to smart, and you turn on a loud connection while talking on the phone;

— Headset_loudspeaker Mode. (the loudspeaker mode when the headset is connected) - this mode is activated when you connect headphones or external speakers to smart, and you turn on a loud connection while talking by phone;

— Speech Enhancement (Talk mode by phone) - this mode is activated in normal mode of talking by phone, and it is not connected to it (headset, external speakers) and the speakerphone is not enabled.

In the last three sections, it is better not to poke the nose:

— Debug info - It is not clear for what - info on the backup of information or its debugging;

— Speech Logger. - I did not understand the end, most likely, logging during negotiations or the record of chatter. If you put a tick on the "Enable Speech Log", then after the phone call is completed in the root directory of the memory card, appropriate files are created. Their name and structure gets the following form: wed_jun_2014__07_02_23.vm (Wednesday_2014__Time07_02_23.vm).

— Audio Logger. - Not bad software for recording sound, which supports quick search, play and save it.

If you approach these modes with the mind, you can adjust the volume of Android smartphones or tablets as you want yourself. When entering any of the modes, various volume settings (Type) will be available. Here is a list of basic settings that you need to know (Fig. 4):

figure 4.

— SIP.- settings for Internet calls;

— MIC- Microphone sensitivity settings;

— Sph - Configure speaker settings (that we apply in the ears);

— SPH2. - Settings of the second conversational speaker (I do not have it);

— SID - We skip, when changing these parameters, during the negotiations on your smartphone or tablet, you can hear yourself instead of the interlocutor;

— Media- setting the volume of the multimedia;

— Ring - setting the volume of the incoming call;

— FMR. - Volume settings FM radio.

Next, under the selection item, it is available for us a list of volume levels (LEVEL) (Fig. 5). For better understanding - such levels 7, from Level 0 to Level 6. Each level corresponds to one "Click" on the volume of the volume of the volume of the smartphone or tablet. Accordingly, Level 0 is the most quiet level, and Level 6 is the most loud level of the signal. Each level you can assign your values \u200b\u200bthat are in the VALUE IS 0 ~ 255 cell, and should not go beyond the range from 0 to 255 (the lower the value, the lower the sound). To do this, you need to erase the old value in the cell, then enter a new (desired) and press the "SET" button (the one next to the cell) for assignment (Fig. 6). Using maximum values Be careful because the speakers can produce uncharacteristic unpleasant sounds in the form of rattling and other unpleasant effects.

figure 5 Figure 6

A warning! Before change, rewrite all factory values \u200b\u200b(suddenly something goes wrong).

You should know it!

Editing modes in engineering menu

Example 1. How to increase the volume of the incoming call?

To do this, go to the engineering menu, to draw the "Audio" section, go into the "Loudspeaker Mode" mode and select "Ring" in the volume settings - setting the incoming call. Then to change the values \u200b\u200bof all levels of signals to change (LEVEL 0 - LEVEL 6). Also for greater effect, you can increase the value of the MAX Vol. 0 ~ 160, if it is not maximum (I put up - 155, with a greater value, the speaker begins to "hoarse").

Example 2. How to raise the volume when talking on the phone? (Increasing the volume of the loudness of the small dynamics that we apply to the ear).

Again, we go into the already known engineering menu, rub the "Audio" section, go to the special mode "Normal Mode", select SPH in it - this parameter is responsible for changing the value of all signal levels in the interval from Level 0 to Level 6. Install the desired for us level. In the Max Vol. 0 ~ 160, you can also change to a higher volume value.

Example 3. Increase the volume and sensitivity of the spoken microphone of the smartphone

To adjust and set the required volume level as well as the sensitivity of the conversational microphone, you must go to the "Engineering Menu"\u003e "Audio"\u003e "Normal Mode"\u003e Select Mic- Microphone Sensitivity Settings, and for all levels (Level 0 - Level 6) We assign one and Also, the value, for example, 240. Now the interlocutor should hear you better.

Example 4. How to increase the sound recording volume on time video?

Suppose the need to increase the volume of sound recording when video recording, then in the engineering menu for our loudspeaker (Loudspeaker Mode), change the microphone sensitivity settings (MIC), increase all values \u200b\u200bat all levels (Level 0 - Level 6), for example, set 240 at each level. I remind you of clicking on the button (SET) - reboot your favorite gadget and rejoice.

By the way, do not forget to press the "SET" button after each editing of a specific parameter. This action must fix and accept your command. Otherwise, user installed Parameters are not activated. Besides, a certain amount of Mobile devices require a reboot to change the changes (turn off and turn on the device).

Good luck in the experiments, if something is incomprehensible - write in the comments. We are waiting for answers from you.

Table codes for entering the engineering menu

smartphones based on MTK processor	# 4646633 # * # * or * # * # 8612 # * # *
Samsung	* # * # * # * # * Or * # * # * # 8255 # * # *
HTC	# * # * # * # * # * # 8255 # * # *
Huawei.	* # * Or * # * # 14789632 # * # *
Sony	# 4646633 # * # * or * # * # *
Fly, Alcatel, Philips	# * # * Or * # 9646633 #
Prestigio.	* # * # * Or * # * # * # 43781 # * # *
ZTE	##4636##
Philips.	# 1 # 3338613 # 1 # * or * # * # *
TeXet.	##3646633##
Acer.	##2237332846633##
BlackView.	# * # * Or * # 35789 # *
Cube.	# * # 4646633 # * # * # * # * # *
Cubot.	##3646633##
Doogee.	# 9646633 # 9646633 # * # * # * # 8612 # * # *
Elephone.	##3646633##,
Homtom.	##3646633##, ##3643366##, ##4636##

Note:the table is constantly updated

In order for developers and software testers and mobile devices Could get some system information and debug the functions of the smartphone, Android OS contains some hidden opportunities. Among them - Connecting to a PC in developer mode, view detailed information On networks and hardware, etc. One of the tools for this is the engineering menu.

The engineering menu is a special settings menu, which contains tools for testing and calibrating iron smartphones. By default, it is hidden, and in order to get into it, a certain procedure should be made. Appearance engineering menu is different on different smartphones, depending on the manufacturer and model SOC. Miscellane will be configured.

There are several ways to enter the engineering menu, which differ depending on the manufacturer of the smartphone and the chipset model. You can try to start entering the dialer in the call application:

# * # * - Smartphones with
# * # 6484 # * # * - Some smartphones with Qualcomm;
* # * # 54298 # * # * - Some smartphones with MediaTek;
* # 0 * # - some samsung smartphones;
* # * # * - Some Sony smartphones;
# * # 4636 # * # * - On some devices only opens menu of working with networks;
* # * # 2846579 # * # * - Some Huawei devices.

If none of the codes helps - on a smartphone with MediaTek, install the MTK Engineering Menu program from the MEDIATEK. On the xiaomi devices You can enter the menu, if you go to "Settings", select the "phone" item and press the "kernel version" line five times in a row.

What can be configured on the smartphone in the engineering menu

The engineering menu on different platforms is different, in many cases it allows you to test some parameters. On the Xiaomi Redmi. Note 3 Pro and Note 4X, built on Qualcomm chips, engineering menu allows you to test various functions. Among them, screen, sensor, sensors, cameras, sound and microphone, communication, battery, navigation, etc. There is no need to change something, you can only find out if everything works correctly.

There is much more richer opportunity on the MediaTek platform. In Oukitel U7 Plus (MT6737 chipset), the engineering menu allows you to configure the network, sound, communication modules, other modules. On the Redmi Note. 2 With MTK Helio X10 The menu was identical, and on other devices with MTK it is not particularly different. In his example, we will describe the possibilities.

TELEPHONY tab

This section is responsible for setting up a cellular modem. Interesting features include Bandmode, Network Selecting and GPRS options.

Bandmode.

In this menu, you can select communication standards that will be active on the phone when installing connections from mobile networks. The menu item is available selection of frequency bands for each SIM card, if the SIM cards are two - full list It is usually available only on the main (as a rule, the first). Having learned exactly what frequencies your operator uses in the region, you can remove the ticks from all the others. This will allow you to raise a little time. autonomous work Due to the fact that the device will not look for the operator's tower in these ranges, spending excess energy to the ether scanning.

Sometimes some communication standards (especially related to LTE) are supported at the chipset and kernel level, but the firmware is disabled. Putting a tick opposite them, so you can activate network data support. It is worth warming that it works not everywhere: on the same REDMI Note 2 ( chinese version) Thus, TDD-LTE turned on, and on OUKITEL U7 Plus, these items are not activated.

Network SELECTING

The name speaks for itself: This item is also responsible for choosing networks. Only in this case, the user can choose which network types to use it. The goal is the same as in the previous paragraph: to reduce the load on cellular modem, thus reducing the charge flow. You can choose only 2G, 3G, 4G, or combine multiple standards.

If your operator does not have 3G or 4G at all, these items can be turned off so that the smartphone does not try to constantly search for LTE networks, thereby accelerating the battery discharge. You can also turn off 3G and 4G if you need permanent communication (for example, to correspond on the Internet), but traffic is limited and uncontrolled using WCDMA and LTE background processes can quickly spend it.

GPRS.

Despite the name, this item is not interesting to the GPRS communication settings, which is no longer needed by many, and the "simple mortal" settings are not recommended. main feature - This is the ability to record IMEI smartphone. In the appropriate item, you can enter the device identification number and click Write to save it.

The ability to write IMEI is often required after unsuccessful flashing when it "flies" and the device cannot register with the operator's network. By rewriting from the smartphone box, this code can be restored. Attention! Illegal change in IMEI smartphone in many countries (including Russia, Ukraine) is a crime!In addition, by rewriting this code for a random, belonging to another subscriber of your operator, problems with communication due to the conflict of equipment are possible. Therefore, we recommend that you always store the box or sticker with IMEI in case of unsuccessful firmware. After all, on the devices with a fixed lid, this identifier is not written under the battery.

Connectivity tab

This tab includes test functions and fine configuration of the Bluetooth module, radio and Wi-Fi. There is nothing to do with the overwhelming majority of users, since there are no interesting unprofessional settings, but to break the normal work of Bluetooth, entering something not, easy.

Tab Hardware Testing

This item settings in the engineering menu is responsible for the hardware configuration. Interesting for users Audio and Touchscreen items. The latter contains Handwriting and MultiTouch items. It is easy to guess, for which these parameters correspond to.

Using the first, you can check the clarity of the triggering of the touchscreen, check for the presence of "blind zones". This menu is especially useful when buying a smartphone, in particular, with hands without warranty. The second point allows you to do the same, but with the participation of several fingers. You can test with him how well the smartphone processes the gestures of several fingers at the same time.

Audio.

It is this cherished point that you need to look for how to increase the volume in the engineering menu. The top items allow you to control the volume of the device, and are responsible for different modes.

Normal Mode is a normal use mode, with the output of music sounds or video to the music speaker. HEADSET MODE is responsible for controlling the headphones. Loudspeaker mode allows you to adjust the talk volume when using speakerphone. The last item is combined, it is responsible for a spelling connection with the headphones connected. In order to change the sound in the engineering menu, you need to select which device you need to configure.

SIP - settings for Internet telephony;
MIC - Microphone Sensitivity
Sph - conversational speaker;
SPH2 - the second spoken speaker (rare beast among smartphones);
SID - After changing this parameter, an echo of your voice may appear when talking, so it does not need to be touched;
Media - multimedia speaker, what is needed by most.

In order to adjust the volume, you need to go to the desired mode (for the multimedia speaker volume it is Normal Mode), select Media and set the volume in the specified range.

The Level parameter is responsible for the volume set by the rocker on each division. Level 0 is the most minimum value (one division), the highest Level - all divisions, on Oukitel U7 Plus it is 14, on other smartphones may differ. The value can be from 0 (silent speaker) to 255 (full volume). There is no particular sense to change the value, but if after a certain division it seems to you that the sound becomes much quieter, it is possible to increase the values \u200b\u200bof a couple of units for this division (and lower levels). The main thing is that the conditional LEVEL 6 is not louder than Level 7, due to the too high.

But to increase the maximum volume in general, you need to change the value in the Max Vol. The maximum level corresponds to the value of 160, but the manufacturers often put less (128 on the test apparatus). By setting the number more, the volume will increase, but side effects, such as bouffags, noises and wheezing, are possible. The optimal value should be selected by the "method of scientific tyk": to increase the value of several units, save, check the sound on video or music, and if everything is fine - to raise more.

Conclusion

It is worth it to repeat that on different smartphones, the engineering menu is different. What is available on the MediaTek platform will not work on Qualcomm. Codes for entering the hidden settings may also not be suitable in some cases, we cannot guarantee their 100% performance. In addition, all you do with your smartphone are doing at your own risk, since incorrect setting It can be affected by its performance. In such cases, only a common reset or flashing will help. So if I really wanted experiments with the settings, the value of which you are not fully understood - it is advisable to make screenshots before that so that in the case of which enter factory values.

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Modern smartphones are not only the opportunity to make calls, pursue the Internet expanses and test various games. Devices running android have pretty a large number of Different secrets and extensions. Some of them are available in the engineering menu. But what is it? How to enter the engineering menu? Are there any risks in working with this part of the gadget firmware? Let's start with the question of why this menu is not in open access.

Safety

The fact is that everything that the user has access to, even with improper handling and removal, will not bring the smartphone irreparable harm. The same menu with incorrect exploitation can lead to the fact that the gadget is not much different from a simple canning can, the place of which is in the trash can.

In addition, everything that really needs to be used is always in public domain. Hidden functions More designed for those who are engaged in the professional level of smartphones. By the way, many masters recommend before entering the engineering menu "Android", take a piece of paper and handle. For what? So that just in case write all stock rates. It helps it great when something goes wrong.

What is this menu?

Under the engineering menu, the special program used by developers at the end of the formation of the Gadget software platform is implied. It helps at the final stage to change the performance of the apparatus and adjust its various functions at the program level. This menu is used for testing.

Before you use this menu, you should make sure that your smartphone works on the "Media" processor. Why is it so important? On other chipsets, for example, Qualcomm, the engineering menu is noticeably trimmed and may not be available at all. How to enter the SAMSUNG engineering menu, the question is not worth it, since all the devices of this brand work on other types of processors.

Version "Android"

Is there any difference between how to enter the engineering menu "Android 5.1" and younger or old version Platforms? Note that there is a difference even in brands and models of gadgets. As mentioned above, for "Samsung" entrance to the engineering menu, although some claim that in this case such teams are working: * # * # 0011 # or * # * # 4636 # * #.

How to open the menu

And here we come to the main issue: how to enter the engineering menu? This is possible if you enter a special code. You can do this through the dialer. What to enter?

*#*#3646633#*#*
*#*#4636#*#*
*#15963#*

After entering the command, most smartphones are automatically redirected to the engineering menu. In rare cases, click the call button. If after that nothing happens, check the correctness of the input. If there are no errors, but no result, it means that the code entered does not fit.

In the event that you have a tablet in which there is no dialer, or did not work any of the codes, you can upload a special application from the "Market". For example, MTK Engineering or MobileUncle Tools. Applications are free.

Functional

After entering the engineering menu, it is necessary to find the department for which all procedures described above have been done. There are three options to test and identify any indicators. Tell what.

Camera

Let's start, perhaps, it is from this part of the gadget. Through the engineering menu, you can configure almost all camera parameters. In another mode, you can enable it to determine the operating current indicators. Few people are interested, but in some cases it helps to solve certain problems associated with autocorrection or focus.

Audio

Often the question of how to enter the engineering menu of the phone, interests the user exactly because he wants to make his gadget louder. If the manufacturer did not put maximum settings, You can independently adjust the sound both in the speakers and in the microphone.

You can spend these operations in several separate modes:

SIP. This item is intended to configure calls over the Internet at a convenient parameters.
MIC. In this section, you can change the sensitivity of the microphone to any of the sides, for example, to make the microphone does not catch their breath and so on.
Sph. This section is responsible for the hearing speaker. It is recommended to use it if you are poorly audible interlocutors calling with different devices, and adjusting the volume of the volume does not cut down.
SPH2. You can not use this function in every smartphone, as it is intended for the second auditory speaker.
Sid. This parameter is better not to change, since it is almost impossible to set it up. He is responsible for the effect of echo.
Media. Use this partition if you do not satisfy the multimedia volume level. Here we are talking about music, video and so on.
Ring. The name of this parameter speaks for itself - ringtone or the volume of the incoming call.
FMR - setting the radio voice.

When working in each of the sections, it is worth understanding that it is not worth playing with each of the parameters.

Connections

In the Connections section, you can test and correct all the possible types of connections that are in the gadget. These include Bluetooth and Wi-Fi. In addition to these obvious types of wireless connection, you can check how efficiently and consistently WLAN CTIA and even the FM receiver.

It is curious that in a separate section "Disable detection", you can configure the signal frequency.

Display and touch screen

These sections will help test and configure the smartphone screen and rear backlight. The first is responsible for the backlight correction, controlling the display lines and setting the backlight. Configuring sensor, you can test it for the presence of broken segments, reaction to touch and so on. You can also calibrate the sensor through the engineering menu.

Memory and USB

The question of how to enter the engineering menu, are those who face the disappearance of memory on the device. By the way, in a separate section, you can test the SD card. As for the memory of the gadget, the menu contains all information about the module. In the engineering menu you can test the performance of the USB port.

Battery

This section is looking for quite many and upset when they do not find. Maybe it is not in the engineering menu? In fact, to see the state of the battery, the percentage of its worn out and the rating of the processes that most affect the device can be in the section "to degree" and in the "battery magazine". The reason for such a strange name is incorrect translation from English. By the way, the transition from Russian to any other language in the engineering menu is simply not.

Qualcomm.

As mentioned above, in most devices with such a processor, the engineering menu does not work or significantly reduced. You can get into it through the usual menu. In it you need to click on the item several times, which is referred to as the "kernel version". You will open new featurein which there are five separate items. What?

AUTOMATIC TEST. Fully meets its name, conducts automatic testing of all necessary systems.
Single Item Test. This section makes it possible to choose one of 25 tests.
Test Report. When you click on this option, you can explore testing reports.
SW Add HW Version consists of various digits that display smartphone data.
Device View. There is information about the equipment.

Not all smartphones with Qualcomm will dry out this menu, but it is worth trying.

conclusions

Knowing how to enter the engineering menu "Android 4.4" and other versions of this operating systemIt is worth understanding that if one of the settings will entail a gadget operation failure, it becomes very small to restore it. Therefore, as soon as you decide to change anything in the settings through the engineering menu, give yourself a report that the device's life can break through. If something does not suit you in the work of the gadget, please contact your experienced master and describe your wishes in detail. He will be able to soberly assess the possibilities and make the verdict.