Why does the mouse not work? Wireless mouse does not work on laptop

Regardless of what type of pointing device is used, sometimes problems may arise due to the fact that the mouse cursor does not move, but the mouse works. What are the reasons and how to eliminate the consequences of the problem, read on.

The mouse cursor does not move, but the mouse works: reasons

When starting to consider the reasons, we need to focus on dividing these devices by type. The easiest way to troubleshoot problems is when using standard devices connected to computers and laptops using a special plug or via USB ports.

In the case of wireless pointing devices or non-standard models intended for gaming, there may be many more reasons why the mouse buttons work but the cursor does not move.

However, some of the most common problems include the following:

• surface contamination;
• incorrect connection or switching on of the device;
• incompatibility and other problems with the USB port;
• incorrectly installed, missing or outdated drivers;
• exposure to viruses.

The mouse cursor does not move, but the mouse works: what to do first?

In the simplest case, first you need to inspect the bottom surface of the device. If there is dirt on the underside, it must be removed. Very often, it is precisely because of this that it is impossible to perform any actions with moving the cursor on the screen.

In some cases, when the mouse cursor does not move but the mouse works, the problem may be due to a momentary software glitch. In this case, you can try to revive the mouse by simply rebooting the entire system. Please also note that if there is an inoperative device, the BIOS does not generate warning signals.

In the case of wireless devices, the problem that the mouse cursor does not move, but the mouse works, may be due to a dead battery. It needs to be replaced. Another reason is that the device is not turned on correctly. In many manipulators, in addition to turning on the special button or power slider on the bottom surface (on the back side), you also need to press the left mouse button (this also applies to sleep mode, which the manipulator goes into when the computer or laptop is turned off). For Bluetooth devices, make sure that the corresponding module is active. For Wi-Fi, you may sometimes need to log into your router and change the protocol to 802.11g.

Sometimes the reason the mouse cursor doesn't move but the mouse works may be because it's plugged into the wrong USB port. As a rule, any modern computer or laptop has several such connectors of the USB 2.0 and 3.0 standards. This also needs to be taken into account.

Finally, you can check the functionality of any type of device quite simply by connecting it to another computer terminal. If it works, then the problem is in the user's system. Otherwise, the main problem may be the drivers.

Changing the driver

For standard devices, the system installs drivers independently. But for some gaming mice, they are supplied complete with the manipulators themselves, and you need to install them manually. In such a situation, the drivers need to be reinstalled or updated. But what to do if the cursor doesn’t move?

This is where knowledge of entering commands and using the keyboard to switch between various functions, applications and sections of the system will come in handy. To quickly access the “Device Manager”, you need to use the console call “Run” (Win + R), in which the command devmgmt.msc is entered, after which movement in the manager itself is carried out using the arrow buttons and tabulator. You can also use the Start menu, opened with the Win key. Functions are called and confirmed by pressing buttons using the enter key, and the Esc key is sometimes used to cancel actions.

When reinstalling a driver, the system will need to specify its location (removable media or a folder on your hard drive) rather than using the recommended installation from the Windows database. Once driver integration is complete, it is advisable to reboot the system, although this is not always required.

Conclusion

It remains to be said that the cause should be looked for exclusively taking into account a certain type of device. But in most cases, if the mouse cursor does not move, but the mouse works, and the problem is not related to software failures or physical damage to the mouse itself (or damage to the connection cord), at least one of the above methods will restore the operation of the manipulator. Problems with viruses were not touched upon here, since every user should take care of security first.

A computer mouse is an ingenious device that was created almost in the middle of the last century. Without this simple thing, we would not be able to fully manage a computer and laptop, because there is simply no replacement for it as such. Therefore, when it stops working normally or simply “glitches”, it is necessary to somehow solve this problem. Today I will talk about why the mouse may not work and what actions need to be taken to revive it.

Causes of problems and their solutions

• To understand whether the device really does not work or the problem lies with your computer, you need to connect it to another PC or laptop. If the mouse turns out to be fully functional, then try inserting it into another port on your main computer - it is known that USB ports often “glitch”, and rearranging the plug gives the result. If you have a PS/2 mouse, I recommend purchasing a special PS/2/USB adapter so that you can use the device via any USB port. The PS/2 connector itself may not be working, hence the problems.

• The next step is to carefully look at the mouse, in particular at the LED. If it lights up, but the device does not want to work, then the problem is probably in the “software”. First, try just restarting your computer (and don’t laugh, this works in many cases) and if that doesn’t help, then try installing the driver specifically for your device. To do this, go to the manufacturer’s official website and download the necessary drivers.

• In some cases, a problem may occur after installing this or that software - there is probably a conflict in the system, as a result of which the mouse stops responding to any actions. Often something similar happens when viruses get onto a computer. What to do in such situations? It is recommended to boot the computer in safe mode and check the functionality of the “rodent”. If it works, then we either remove the installed software or roll back the system to an earlier date. And of course, don’t forget to scan your PC for viruses.

• Interestingly, users of PS/2 mice encounter this problem more often. Why? The fact is that the plug used in such devices is not ideal. It consists of many contacts (sort of pins) that tend to bend. For example, you removed the plug from the port and inserted it back, after which the mouse stopped working. Apparently, some of the pins are bent and need to be returned to their normal position. This can be done, for example, using the most ordinary tweezers or something sharp (even the most ordinary ballpoint pen may suit you). USB mice are completely free of this problem due to a much more thoughtful system.

• Theoretically, the wire could be damaged. This rarely happens, since it is not subjected to strong mechanical stress. Still, pets often chew through the wire. So, we carefully examine it for external damage, and if you haven’t found any, then do the following: pick up the mouse and start moving the wire. If the indicator (LED) starts blinking at this moment, then, apparently, the problem is really in the wire. It will need to be replaced, although in most cases it will be cheaper to purchase a new rodent.

• If you use a wireless mouse, the most common cause of the problem is a dead battery, as well as a problem with the Bluetooth receiver driver.

• Now let's move on to the buttons and wheel. When it comes to buttons, the failure of one or both of them is most often due to a mechanical problem. Theoretically, you can resolder the chip, but usually this is not economically viable - a new mouse costs the same amount, if not cheaper. But if the wheel gets stuck, then it makes sense to disassemble the device and clean it of dirt - hair and other “charms” get wrapped around the wheel, which interfere with its operation. Try cleaning the wheel, everything should return to normal.

• Continuing the conversation about buttons, we cannot fail to mention that for additional buttons that are located on the sides of the mouse (they are usually used in games), it is necessary to install other drivers that come with the device. They can also be downloaded from the manufacturer’s website.

• If the mouse still works, but not quite adequately, for example, jumps from side to side, then dirt may be to blame for this (in the case of ball mice this is, one might say, normal) and problems with settings. If in the first case it is enough to clean the device from dirt, then in the second you need to play with the settings. For example, try adjusting the sensitivity of your gadget. How to do it, I.

• If problems with inoperability arise in games, or rather, the mouse does not work in a particular position, then the problem is 99% in the settings of the game itself.

What can't you do?

• If you recently purchased a mouse that is under warranty and it stops working, do not try to repair it yourself - this may void your warranty.

• You can damage the device if you try to repair it yourself without the necessary skills. Therefore, I recommend contacting specialists with such problems.

Finally, I will say that in most cases it is quite easy to solve the problem yourself; to do this, you just need to find the cause of the problem, which most often lies in the “software”. If you have any questions, please contact us.

A mouse or pointing device is a device for controlling the cursor and transmitting some commands to the operating system. On laptops there is an analogue - a touchpad, but many users, due to various circumstances, prefer to use a mouse. In this case, situations may arise where it is impossible to use the manipulator due to its banal inoperability. In this article we will talk about why the mouse on a laptop may not work and how to deal with it.

In fact, there are not many reasons why a mouse may not work. Let's look at the main, most common ones.

• Sensor contamination.
• The connection port is not working.
• The cord is damaged or the device itself is faulty.
• Malfunction of the wireless module and other problems with Bluetooth.
• Operating system failure.
• Driver related problems.
• Actions of malware.

No matter how trivial it may be, first check whether the device is connected to the port and whether the plug fits tightly into the socket. It often happens that someone or you yourself accidentally pulled out the cord or wireless adapter.

Reason 1: Sensor contamination

With prolonged use, various particles, dust, hairs, etc. may stick to the mouse sensor. This can lead to the fact that the manipulator will work intermittently or “brakes”, or completely refuse to function. To fix the problem, remove all excess from the sensor and wipe it with a cloth soaked in alcohol. It is not advisable to use cotton pads or swabs for this, as they can leave fibers, which we are trying to get rid of.

Reason 2: Connection ports

The USB ports to which the mouse is connected, like any other system components, can fail. The “easiest” problem is ordinary mechanical damage due to long-term use. Less often the controller fails, but in this case all ports will refuse to work and repairs cannot be avoided. To solve this problem, try connecting the mouse to a different connector.

Reason 3: Device malfunction

This is another common problem. Mice, especially cheap office mice, have a limited service life. This applies to both electronic components and buttons. If your device is more than a year old, it may well become unusable. To check, connect another, known working mouse to the port. If it works, then it’s time for the old one to go into the trash bin. A little advice: if you notice that the buttons on the manipulator begin to work “every time” or the cursor moves jerkily across the screen, then you need to purchase a new one as quickly as possible so as not to get into an unpleasant situation.

Reason 4: Problems with the radio module or Bluetooth

This section is similar in meaning to the previous one, but in this case the wireless module, both the receiver and the transmitter, may be faulty. To check this, you will have to find a working mouse and connect it to the laptop. And yes, do not forget to make sure that the batteries or accumulators have the necessary charge - this could be the reason.

Reason 5: OS failure

The operating system is a very complex complex in every sense and that is why various failures and malfunctions often occur in it. They can have consequences in the form of, among other things, failure of peripheral devices. In our case, this is simply disabling the necessary driver. Such problems are most often solved by simply rebooting the OS.

Reason 6: Driver

A driver is a firmware that allows a device to interact with the OS. It is logical to assume that its malfunction can lead to the inability to use the mouse. You can try to restart the driver by connecting the controller to a different port, and it will be reinstalled. There is another way to restart - using "Device Manager".

Reason 7: Viruses

Malicious programs can significantly complicate the life of an ordinary user. They can affect various processes in the operating system, including the operation of drivers. As mentioned above, without the normal functioning of the latter, it may be impossible to use some devices, including a mouse. To detect and remove viruses, you should use special utilities that are distributed free of charge by antivirus software developers and.

There are also resources online where trained specialists can help you get rid of pests completely free of charge. One such site is Safezone.cc.

Conclusion

As it becomes clear from everything written above, most problems with the mouse arise due to malfunctions of the device itself or due to software failures. In the first case, most likely, you will just have to purchase a new manipulator. Software problems usually do not have serious causes and can be solved by rebooting the driver or operating system.

A computer mouse is an integral device in the system. Some people experience situations where the mouse either starts to work poorly or fails altogether, but in Windows this thing is very necessary. I think many people have wondered, is it possible to somehow fix the mouse, or simply fix problems in the system due to which it does not work? Of course it is possible, and now we will try to resolve this issue.

If the mouse does not respond to any actions at all, many people immediately run to the store for a new one, although others solve this problem on their own, which leads to long-term service of the manipulator.

Many of you probably know that there are several types of connecting a manipulator to a computer or laptop - PS/2, USB, Bluetooth and Wi-Fi. Thus, the first two are wired manipulators, and the second two are wireless. Each one may have its own problem.

Recommendations for troubleshooting problems for all manipulators

What should I do if the mouse still works, but is unstable, for example, it turns off and then turns on again?

When connecting the manipulator via USB, you should take a different USB cable. If the operating system on your computer has been installed for a very long time and has not been updated, then this may cause unstable operation of the manipulator; it is also possible that many other manipulators were connected to the computer, resulting in a conflict between the drivers.

Try connecting the mouse to a connector on another computer and if everything works well, then the problem is in the USB controller.

You can try to reinstall the mouse driver using the keyboard; to do this, press the Win+R combination and enter the command mmc devmgmt.msc .

We are in the device manager. Now you need to press a key Tab so that you can navigate using the arrows. Scroll down with the arrow to the point "Mice and other pointing devices" To expand the list, press the right arrow.

Move to the desired device and press Enter, a window will open where you need to hold down the Ctrl and Shift keys, and then press the Tab key to move to the tab "Driver", after that just press the button "Tab" and move to the button "Delete". Press Enter and confirm the action.

Restart your computer or laptop, and then reinsert the mouse, the driver should be reinstalled and, perhaps, everything will work.

What to do if the manipulator cursor does not stand still?

This is not such a difficult problem; perhaps the sensor is clogged with dirt, dust, or something is stuck and prevents the cursor from pointing at objects normally. I advise you to completely wipe the mouse, starting with the sensor.

The next problem is that the buttons on the manipulator almost do not respond when pressed, what should I do?

Here the problem is already related to the mouse itself, that is, at the hardware level. It is possible that the button or buttons failed due to too much pressing, or you pressed them so hard that they failed due to your fault. There is a possibility that dirt got inside and this prevents the button from functioning normally, you will have to disassemble the mouse and take a look. If no dirt is found, then most likely the microbutton needs to be replaced, which requires appropriate knowledge.

Several individual problems for manipulators

If you have a wired paddle, then common causes of failure are related to a wire that is kinked or broken. Inspect the cable carefully for damage.

What to do if your wireless mouse doesn't work? If these types of manipulators run on batteries, then it is quite possible that they have run out. Replace them. If the problem is not related to nutrition, then you will have to look for the problem yourself. Some of the types of problems described above may also apply to wireless paddles.

Another disadvantage of wireless pointing devices is that they can conflict with similar frequencies of other devices, it can be anything - a smartphone, tablet, TV, refrigerator, router, etc.

The biggest problem with computer mice is that many of them are not shockproof; if you drop your mouse a couple of times, don’t be surprised that it breaks down or doesn’t work well. Not every manufacturer uses high-quality parts to make a manipulator, so treat things with care.

This article can end here. If you have any questions, don’t hesitate to ask them.

Modern mice are precise and durable. And yet one day the computer may not respond to mouse movement.

The computer does not see the mouse: causes and troubleshooting methods

USB port is faulty

The reasons for the USB port not working are similar for all PCs running Windows.

Not enough power - Too many devices are connected to one port through a hub without external (auxiliary) power. Plug the mouse's USB connector into this port instead of a hub.

The USB port controller has failed. Contact a computer service center for repair of PCs and laptops; the controller board must be replaced.

The power supply (if you are using a classic system unit and not a laptop or tablet) has exhausted its power (the PC was upgraded, additional devices were installed). Replace the power supply in the PC system unit with a more powerful one.

The drawback of the front USB ports is when they all “sit” on the board of the same microcontroller. For example, if a hub with three simultaneously operating 4G modems and a printer are connected to two such USB ports, a failure is almost guaranteed: the modems will often lose the cellular network or spontaneously break working connections (all at once or one by one), and the printer will “get stuck” without finishing printing a multi-page document. Most USB controllers do not draw a load current of more than 0.5 amperes. USB ports with enhanced power supply (1–2 amperes) are gradually replacing them - but if your PC or laptop was released in the “zero” and is already significantly outdated, this problem will haunt you constantly. If a mouse is connected, its control will often turn off due to overload.
Saving on controllers won't do you any good! Use additional power - modern USB-Hubs come with a separate power adapter!

Break in USB controller cables. You can repair broken wires yourself - but it is better to entrust this to specialists.
Make sure everything is intact

Damage to the USB connector and connector, their wear. Although each USB connector can withstand up to 100,000 connections and disconnections of external devices and cables with a USB connector, after years of active use of any of the USB ports, the contacts of the connector itself can be loosened, weakened - there is no reliable contact. will replace both the connector itself and the entire port or group of ports, including the controller itself. A port that has been used constantly or carelessly can also break.

USB function is disabled in BIOS settings - enable it.
Make sure USB features are enabled and set to maximum performance

Short circuit of the wires through which power is supplied to the mouse as a result of a violation of the insulation of the mouse cable. The USB controller, of course, has protection against shorting any two or more wires - but when you try to reconnect a mouse or any other device, a Windows message appears, for example: “It is impossible to connect to USB on this port.” Disconnect the mouse with the faulty cable, fix the short circuit in it and restart the PC.

For Apple Mac computers, the steps are simpler.

Make sure the USB port is working. Insert your working mouse or flash drive into the USB socket. The flash drive will blink - it means the USB port is working, if not - it is damaged. If the USB port works, do the following.

Check your MacOS system for viruses. If you find software problems, reinstall MacOS and check your PC for viruses.

Reinstall USB drivers for MacOS. Apple PCs must come with chipset drivers. You can find them on apple.com.

If the USB port malfunctions, contact an Apple service center - unlike other computers, Mac PCs are quite difficult to disassemble, so it’s better not to risk it yourself. It may happen that not only the USB port is faulty, but also the south bridge of the computer’s main board.

If the USB port turns out to have nothing to do with it, most likely the mouse itself is not working. Buy a new Apple mouse or similar.

Mouse cable is faulty

Short circuit of two or more cable wires with each other, breakage of any of the wires. The USB interface is designed in such a way that all five “cores” - “+”, “-”, “data+” and “data-” and shielding - should not be broken. A break in any of these wires is guaranteed to lead to the inoperability of not only the mouse, but any device in general. It happens that due to the lack of a replacement for a damaged cable, a new mouse is required.

The mouse is damaged

Old-style mice, widespread in the 90s and the first half of the 2000s, were optical-mechanical: in addition to a light and photocell, controller and reader, they had a mechanical drive - a ball, rollers and a slot breaker. Now such mice have become rare - they have become purely optical.

This is what a disassembled mouse looks like

In addition to a faulty cable, mouse malfunctions may include the following:

The main board (controller, reader, light and photocells) does not work;

the lens is dirty or scratched (rare, but it happens);

the wheel control unit is faulty;

the buttons are faulty (the mouse pointer moves on the screen, but commands from the buttons and the wheel - it also has a third button - do not go through).

Wireless mice are powered by one or two replaceable batteries or accumulators. The following may also be faulty:

clamping contacts (if poor quality, they may oxidize or rust);

power wires;

a wireless module that provides communication with a USB device (it can be several times smaller than a flash drive);

batteries (expired - replace them) or rechargeable batteries (discharged, need to be charged).

If the boards and controllers break down, the mouse definitely needs to be replaced.

Problems with mouse operation at the software level

General information about driver problems

Incompatibility of chipset drivers after replacing the Windows version with a newer one (or, conversely, an older one) may result in a failure of mouse control. Since the mouse/touchpad/touch driver is usually included in all modern operating systems except MS-DOS, the main cause of mouse failure is considered to be a malfunction of the USB driver: this component is the “Universal Serial Bus Controller” and “USB Root Hub”. Search the Internet for a version of the chipset driver that is suitable for the version of the operating system you are currently using. However, in versions of Windows 8/8.1/10, all the main chipset drivers are already components of the system - they do not need to be installed separately.

For Apple computers (for example, MacBook), mouse and touchpad drivers are also included in MacOS - when upgrading a version of MacOS, say, from Yosemite or El Capitan to Sierra, the mouse problem is only related to the lack of computer performance in the latest version of MacOS. But wireless mice like Magic Mouse require separate settings - they require a Bluetooth driver for MacOS to work.

Thus, on Acer netbooks recommended for working specifically with Windows 7, when installing Windows 8/8.1/10, there was a problem with the netbook hardware - the chipset driver versions for Windows 7 were not suitable: the sensor stopped working (the mouse pointer did not respond), the wireless network disappeared connection, etc. The best solution was to ignore these outdated drivers - after removing them and restarting Windows, the missing devices worked fine again.

All this suggests that in the latest versions of operating systems, be it Windows or Mac, graphical shell developers have taken into account and supported almost all functional blocks and components of the PC at the software level. This is why timely updates are needed.

Diagnostics of USB ports on a Windows PC

To reset USB controllers found on a Windows PC or laptop, do the following.

Give the command “Start - Control Panel - Device Manager”. (Computer - Management", "Device Manager" tab). Windows Device Manager will launch.

Give the command “Action - Update hardware configuration”. Update the list of devices

Disable one or all of the existing USB controllers from the list. Select each one and delete it. After restarting Windows, all controllers will be updated. Remove each one manually

If resetting and re-registering USB controllers after restarting Windows did not give anything, then the problem is somewhere else, for example, in the USB configuration.

Diagnose USB ports on a Mac

On MAC computers, to regain control of the USB ports - and with them mouse control - reset the SMC (System Management Controller) settings. The reset method is different for different Mac PC models.

On a MacBook with a non-removable battery, follow these steps.

Turn off your PC.

Connect the MagSafe or USB-C power adapter to the power supply and to the PC.

Press the key combination on your keyboard: Shift+Control+Option (left) and the power button.

Release all keys and the power button.

Turn on your PC.

On Mac laptops with a removable battery, do the following:

Turn off your PC, disconnect the MagSafe adapter from the PC, and remove the battery.

Hold power for a few seconds.

Connect the battery and MagSafe adapter and turn on the PC.

On Mac Pro, iMac and Mac mini

Turn off your PC

Unplug the power cord, wait 15 seconds, then plug the cord back in.

Wait another 5 seconds and turn on the PC.

Diagnose a wireless mouse on a Mac

Bluetooth mice are widely used. The Apple branded mouse, Magic Mouse, is taken as an example. You also need another mouse that works via USB. To test Bluetooth connectivity, do the following:

Go to Mac System Preferences.

Go to Bluetooth settings.

While holding down the Ctrl key on your keyboard, left-click on the Magic Mouse in the Bluetooth paired devices window and click Delete.
You need to remove and re-register the Bluetooth mouse

Restart the mouse (there is a switch on the back).

Wait until the Bluetooth mouse appears in the devices window, establish a connection between the mouse and the PC via Bluetooth. Wait for a notification that the mouse has been successfully connected to the computer.

After reconnecting, Magic Mouse should work again. If the problem persists, the Bluetooth device may not be working correctly. Reinstall the Bluetooth driver. If nothing helps, even a “clean” installation of MacOS - perhaps the Bluetooth module or the Magic Mouse itself is faulty. Contact the Apple Service Center to resolve any problems.

Incorrect USB setup in Windows

Automatically turning off USB ports is one of the protective measures against excessive consumption of electricity to power the computer and against excessive overheating. Ports that are not currently in use are suspended. Disable this in Windows Power Options.

Give the command “Start - Control Panel - Power Options”, select your power plan and get to the USB settings. 1

Disable temporary shutdown of USB ports. It is not advisable to put the USB port in inactive mode

Although modern USB controllers supply power and control signals to the interface as soon as any device is connected, the port may not respond in time to the connection of a mouse. Neither Linux, nor Windows, nor MacOS are immune from USB malfunctions.

Checking USB controllers in Linux

The Linux operating system also allows you to manage USB ports on your PC. Different versions of the USB interface are supported, including 2.0. For example, let's take the Linux Gnome Ubuntu graphical shell.

Launch the Terminal by giving the command “Applications - Accessories - Terminal”.
Enter the required commands

Enter the required commands. To confirm, press the Enter key. Commands can also be freely copied from any text - using the combination Ctrl+Shift+V or using the mouse (much like in Windows).

The lspci command entered in the Linux terminal allows you to display USB devices. For example, let's take three USB controllers installed on a PC running Linux

root@localhost:~:# lspci grep -i usb

00:03.0 USB Controller: Silicon Integrated Systems USB 1.1 Controller (rev 0f)

00:03.1 USB Controller: Silicon Integrated Systems USB 1.1 Controller (rev 0f)

00:03.3 USB Controller: Silicon Integrated Systems USB 2.0 Controller

Now enter the lsmod command. For example, it will look like this:

root@localhost:~:# lsmod | egrep 'usb|hci|hid|mouse|Module'

Module Size Used by

hid_microsoft 3232 0 usbhid 32992 0

hid_microsoft,usb

hid ohci_hcd 24332 0

ssb 38464 1 ohci_hcd

ehci_hcd 34152 0

Be sure to check if your mouse is among the connected devices.

Other USB software glitches on any PC

Anything can disrupt the operation of USB ports - from incorrectly installed drivers to viruses that launch extra copies of system processes and overload the computer's performance. One of the most protected operating systems from any Internet threats is MacOS.

Problems with the mouse on the tablet

Modern tablets based on Windows and Android also support mouse operation via Bluetooth or via an OTG USB-microUSB adapter, to which both a classic mouse with a USB cable and a module from a wireless mouse can be connected. After all, on a large 10-inch screen, using a mouse along with a keyboard when installing the tablet on a special stand is already relevant.

For Windows tablets, follow roughly the same steps as on a Windows PC or laptop.

On Android tablets, the current version of the Android operating system must have system libraries that support mouse control of the tablet. If the pointer (or marker) does not appear on the display and there are no signs of controlling the tablet with a mouse, you may need to flash the Android system from the official version to a “custom” one, replacing the Android kernel, or install a special application for controlling the tablet with the mouse.

As for the functionality of the microUSB ports, you can’t do without checking. First, check the OTG adapter itself - it is advisable to have at least two working adapters. If suspicion still falls on the microUSB port, connect a keyboard (possibly wireless), 3G/4G modem, flash drive, printer or something like that instead of a mouse. Try connecting two or three devices at once via a USB hub with external power. You will hardly notice that the microUSB port is faulty. In this case, you cannot do without specialists from a “mobile” or computer service center.

Video: how to fix a USB port on a laptop

Finding out why the mouse does not work is a task of quick wits, which, however, you can solve yourself, turning to specialists only in case of extreme necessity. You will succeed!