Ways to solve the problem. How to restore IMEI on Android after flashing? Ways to solve the problem Samsung galaxy communication module firmware

A consumer focused on purchasing modern mobile technology often experiences severe disappointment a short time after purchasing a smartphone.

For example, the famous manufacturer Lenovo is focused on two different markets. The first is aimed at the European consumer, so smartphones are produced in Europe, and the second type of smartphones is “born” in the Chinese space.

If you notice problems with coverage, it may be the radio module

Of course, you cannot expect the same quality from such two different models. If you managed to purchase Android, which often began to present “surprises” in the form of a lack of connection, then you managed to purchase the Chinese version.

Unfortunately, the “Chinese” very often refuses to catch the 3G network signal at the GSM 900 frequency.

Faced with such a problem, you will have to delve into some technical parameters in order to understand how to flash the Android communication module.

It won’t be too difficult if you carefully read all the stages, comprehend important secrets, and understand what firmware of a communication module is.

Any actions with mobile phones should be done carefully, since ignorance of some basics can provoke undesirable results.

Brick is the name given to a smartphone that has lost its functionality.

You should change the firmware on your smartphone only in cases where it is simply impossible to find another solution to the problems.

Reasons for changing the firmware

If your brand new mobile device does not want to pick up a network signal, no reboots help, it means that the software simply cannot perform such tasks at a high-quality level. This is all because they sold you a Chinese version of a branded mobile device.

If the network signal is poorly supported on the GSM 900 frequency, the conversation will not work, since the connection will be constantly interrupted, and accordingly, the interlocutor will not be able to understand your speech.

Even if this is the case, you will not be able to return the device, so you can read the information on how to flash the radio module, and then do these steps yourself.

To avoid becoming the owner of a Chinese copy, when choosing a device, do not be too lazy to open the lid and inspect all the inscriptions. The Chinese version is accompanied by a strict arrangement of information in a column, while the European version involves placing additional logos next to the information, so you won’t be able to find any columns here.

Before purchasing a device, pay attention to the inscriptions under the cover

If you were given a Chinese device, you will have to improve it yourself, “make” it work correctly and quickly, but for this you will need to figure out which radio module firmware is most effective.

Radio module firmware

So, having understood the intricacies of how to reflash the radio module, you can improve your favorite mobile device.

It is very important to follow the firmware algorithm and not skip any subparagraphs, so as not to cause harm or provoke an even more serious failure.

At the moment, there are several options for installing a new firmware version on the radio module, so the user will be able to vary and choose the algorithm of actions that will be more understandable to him.

Firmware algorithm

At the very beginning of such responsible actions, it is important to obtain Root rights to your Android. Next, download TWRP-recovery and save it to your SD card.

Now you will need to download special software from the Play Market that will help update Recovery. The Mobileuncle MTK Tools utility can be an excellent assistant in carrying out such actions.

Install this program, run it and find the “Recovery Update” item. After you click on this item, the system will ask for the location where the Recovery file was placed. Of course, you should specify the SD card.

It is important to find working versions of the radio module firmware from trusted sources, download them and save them.

After completing the process, all that remains is to clear the cache by deleting all unnecessary files from the smartphone. To do this, find the “Wipe cache/dev link” item, click and wait for the cleaning to complete. Now just restart your mobile device, after which you can start using it.

Clear your device cache by clicking Wipe cache

You can use another method to flash the radio module. To do this, you will first have to download and save the desired firmware version, as well as the android-info.txt file.

Unpack the firmware, find the Radio.img file, move it to a new folder, where you also place the android-info.txt file.

Now name this folder PC10IMG, and then archive it in zip format. Move this created archive to the SD card.

After these steps, turn off the device, remove the battery for five seconds, then connect it again, but only while holding down the “volume down” key.

In this case, a software request “Do you want to start update” will appear on the screen, to which a positive response should follow, namely, pressing the “volume up” key.

After completing the process, which will occur automatically, you should reboot the mobile device, and you can begin to use it, since the firmware of the radio module is completed.

So, firmware of the radio module is not as complicated as it might seem at first. It is only important to follow the algorithm and not ignore any wishes of experienced users. Only in this case will your mobile device please you with correct operation and performance.

nastroyvse.ru

Lenovo P780: radio module firmware

The Chinese company Lenovo produces its phone models for different world markets. In this regard, 2 versions of smartphones are produced: European and Chinese.

Owners of the Chinese version of Lenovo often face the problem of lack of communication. This is primarily due to the fact that the “Chinese” does not receive the 3G network at the GSM 900 frequency.

If the Lenovo P780 has poor connection, this already indicates that it was produced for the Chinese market.

The difference between the European and Chinese versions of Lenovo P780

A person who is not technically savvy will be able to distinguish a Lenovo Euro smartphone from a Chinese one, judging by the picture below. On the left side of the image is Chinese, on the right is European.

The battery has different placement of inscriptions and stickers.

Only after we are convinced of the phone version can we proceed with the firmware instructions.

Step-by-step firmware for Lenovo P780 communication module

1. First of all, you need to get Root rights. If rights were obtained earlier, then skip this step.

3. Download and install the Mobileuncle MTK Tools program from the Play Market.

This completes the Recovery firmware.

5. Download the working version of the modem for Lenovo P780 from the link (archive).

6. Go to TWRP Recovery -> click Install -> Select and install the archive of the radio communication module downloaded above.

7. There you need to clear the cache: click Wipe cache/dev link, then reboot the phone.

If this step-by-step instruction for flashing the communication module firmware for Lenovo P780 was difficult, we suggest watching the video below.

Lenovo P780 radio module firmware video

geekk.ru

Lenovo radio module firmware

The Lenovo P780 phone model, like other devices from this company, provides for different variations of the radio module. Because of this, the Chinese and European production options have quite significant differences. So, in the case of the Chinese modification, know that your smartphone will not support 3G networks at GSM 900 frequencies, as a result of which the connection will be of poor quality and, most likely, intermittent. Especially as you move away from the mobile operator tower.

Differences between Chinese and European Lenovo P780 series

The main thing that catches your eye when examining both models is the different location of the inscriptions and stickers on the battery case. Take a closer look and you'll definitely spot some clear differences.

So, in order to improve the smartphone’s signal reception, as well as to increase the speed of the mobile device’s Internet, it is recommended to try out different types of radio modules.

Let's look at how to flash a radio module and achieve high-quality conversion. Step-by-step process for flashing radio modules in Lenovo P780 models:

1) Make sure that “TWRP - recovery” is installed correctly;

2) download the radio module you prefer (all offered are suitable for the model configuration):

- modem type V51 - download (clickable).
- modem type V52 - download (clickable).
- modem type V23 - download (clickable).
- modem suitable for a smartphone from the Lenovo S920 model - download (clickable).

3) the next step is to visit “TWRP - recovery”, click on the “Install” item and activate the previously purchased archive with the radio module to be installed, but before this point do “Wipe cache” and then reboot the phone.

From now on, you clearly know how to flash the radio module. This means you can normalize the settings yourself if necessary. Don't be afraid to flash and try the modem. All radio module firmware is reversible - so try the modem that suits you best!

The Chinese company Lenovo produces its phone models for different world markets. In this regard, 2 versions of smartphones are produced: European and Chinese.

If the Lenovo P780 has poor connection, this already indicates that it was produced for the Chinese market.

The difference between the European and Chinese versions of Lenovo P780

The battery has different placement of inscriptions and stickers.

Only after we are convinced of the phone version can we proceed with the firmware instructions.

Step-by-step firmware for Lenovo P780 communication module

This completes the Recovery firmware.

5. Download the working version of the modem for Lenovo P780 from the link (archive).

6. Go to TWRP Recovery -> click Install -> Select and install the archive of the radio communication module downloaded above.

7. There you need to clear the cache: click Wipe cache/dev link, then reboot the phone.

If this step-by-step instruction for flashing the communication module firmware for Lenovo P780 was difficult, we suggest watching the video below.

Lenovo P780 radio module firmware video

Differences between Chinese and European Lenovo P780 series

So, in order to improve the smartphone’s signal reception, as well as to increase the speed of the mobile device’s Internet, it is recommended to try out different types of radio modules.

Let's look at how to flash a radio module and achieve high-quality conversion. Step-by-step process for flashing radio modules in Lenovo P780 models:

1) Make sure that “TWRP - recovery” is installed correctly;

2) download the radio module you prefer (all offered are suitable for the model configuration):

- modem type V51 - (clickable).
- modem type V52 - (clickable).
— modem type V23 - (clickable).
- a modem suitable for a smartphone from the Lenovo S920 model - (clickable).

Remember that everything you do is done at your own peril and risk! Before you do anything, think 100 times!

Reflashing a smartphone is a very serious matter. You need to take into account many features of a particular gadget model and, at the same time, keep in mind complete step-by-step instructions for installing the firmware. Otherwise, you can completely kill your device in a matter of seconds. For the most part, the process ends successfully. But there is a special category of smartphones (gadgets from the Middle Kingdom based on processors from MTK) that begin to “strange” after updating the firmware. Specifically, the IMEI of the phone is lost. How to restore IMEI on Android after flashing? This will be discussed in our article.

What is IMEI?

IMEI is a special identification number that is assigned to the communication module of a smartphone. It is this that allows the device to “catch the network” and transmit data. This serial number can also be used to identify a stolen smartphone. When flashing using the appropriate hardware, you can change or “overwrite” the IMEI, but it is impossible to completely get rid of it. Just dig a little deeper and it will appear. Therefore, under no circumstances should you purchase gadgets without documents or with a strange IMEI - they may be stolen.

Usually, when flashing a device, the IMEI remains in its place, unless, of course, we have a smartphone from a well-known brand. For Chinese gadgets (especially on the MTK platform), the disappearance of the serial number of the communication module after flashing is a common occurrence. The good thing is that you can restore it (in most cases) without interfering with the firmware. The main thing is to have the number written down in some documents. So, how to restore IMEI on Android after flashing? Let's look at specific examples.

Using the Engineer Menu

This method does not work on all devices. But no one is stopping you from trying. You need to enter the engineering menu using the command (typed on the keyboard) *#3646633# or *#*#3646633#*#*. Before doing this, do not forget to remove the SIM card from the smartphone. Next, go to the CDS item, then to RADIO INFORMATION - and there select the PHONE 1 item. After the AT+ inscription, enter the line EGMR = 1,7,"". The quotation marks are intended for entering the IMEI indicated on the sticker under the battery (for example AT+EGMR=1.7,"123456789123456"). Then you need to click on the SEND AT COMMAND tab. The process is complete.

After completing all operations, you should reboot the gadget and return the SIM card back. If the mobile connection works, then this method is suitable for your device. We answered the question of how to restore IMEI on Android after flashing the firmware without root rights. There is really no need to root the device to carry out this procedure. However, this method is not suitable for everyone. For those for whom it did not work, the next part of the material will help. Let's move on to it.

Firmware tampering

If the first option did not help, then you will have to correct the firmware files. Here you will already need superuser rights. You can get them through Framaroot or KingoRoot. The question of how to restore IMEI on Android after flashing it through the engineering menu, it turns out, disappears by itself. To return the communication module number, you need to correct one file of the gadget’s operating system. It is called MP0B_OO1 and is located here: /DATA/NVRAM/MD/NCRAM/NVD_IMEI.

Open the above directory (via Root Explorer) in some text editor and enter the correct IMEI in it. Most likely, the file will be completely empty. So there shouldn't be any problems with this. This method works on all devices. We figured out how to restore IMEI on Android after flashing Lenovo or some other smartphone from the Middle Kingdom. Even beginners should not have any problems.

Using special applications

There are some devices that do not allow you to delve into firmware files or engineering menus (Samsung smartphones are especially guilty of this). How to restore IMEI on Android after flashing such a device? There is a way. It consists of using a special application. But for this you will need to obtain superuser rights. Then you need to download the Chamelephon program from Google Play and install it on the device.

Then everything is very simple. The application will immediately display two windows in which serial numbers must be entered. You can generate new ones or use existing ones. It will be enough to click on the Apply New IMEIs button. After the operation is completed successfully, the application will ask you to restart the device. Let's do it. After this all networks should work. Now you know how to restore IMEI on Android after flashing Samsung or other devices of the same type.

Precautionary measures

Remember: no one can give you a guarantee that all the methods described above will work adequately on your device. Therefore, experts recommend making a backup copy of the device’s operating system and all data before carrying out any work. This is especially true for those who decide to use the method of editing system files. This method is very dangerous, as it can lead to fatal errors and complete inoperability of the device.

All other IMEI repair methods are safe for the most part. But it still won't hurt to make a backup copy. What if something goes wrong? Then nothing will stop you from returning a working version of the OS and continuing to do scientific research.

Summary

The question of how to restore IMEI on Android after flashing the firmware (via the engineering menu too) has many answers. It is not a fact that the methods described above will suit you. But they help most people. The main thing is to do everything as described above, and, of course, make a backup copy. Then your device is in no danger. But don't forget about precautions. We hope that everything will work out for you, and that your gadget will live a long and happy life, delighting you with its performance. Just follow the instructions carefully - and everything will be fine!