We often face with different problems in using our smartphones: after the update, we deal with bugs of some functions. In addition, even some modules can stop working. In this article, we will show you what to do if the Bluetooth is not working after Android update.
Figuring out the problem
To start, you need to make sure that the wireless module does not work. To do this, it is necessary to turn it on. This is done in the following way:
In some versions of Android, you will have to go to the "Wireless Networks", and then select «Bluetooth».
- In the new window, activate the slider, which is located at the top right.
After these steps, the wireless radio module should turn on, and the device will automatically search for available devices.
- To connect with the device, choose the desirable device and click on its name.
- If you make a pair with that device for the first time, agree to perform the connection.
If the module does not turn on, you should consider further actions.
If the Bluetooth does not turn on
Note that the Android OS has virtually no radio module settings. All the necessary parameters that are responsible for proper operation are already added to the system, and they do not require to be changed, because they are hidden from the user. This is done to prevent inexperienced users from harming their devices. Therefore, in this case, we will not be able to adjust the module.
To solve this problem, you should consider three reasons that could cause it.
Restarting the device
First, you need to restart the device. This procedure can correct minor faults or loops in the system due to clogged cache, which led to the incorrect work of the Bluetooth. This procedure will clear the temporary files and possibly correct the incorrectly operating functions.
After restarting, try to activate the Bluetooth. If the desired result is not achieved, go to the next step.
Resetting to factory settings
This method usually can correct any failures in the system. It allows you to reset all the parameters to remove all installed applications that might affect the operation of the module, or remove changes in the file system, which could be made by viruses.
Depending on the manufacturer and version of Android, this option may be located in different places of the menu. For example, on the LG smartphone with Android 4.4, you must do the following.
- Go to the settings of the device.
- Select the "Backup & Reset".
- Click "Factory data reset", then you will see a window with a warning that everything will be erased from the device.
- Click "Reset phone".
- Wait until everything is completed, restart the device and try to re-enable Bluetooth.
If this method also did not help, and you have the official firmware, it is most likely that the module is defective. In this case, contact the service center for further clarification and fixing the faults.
If you have updated an unofficial (custom) firmware on your device, you should look at the problem at the developer level (it requires specialized knowledge in programming). It will be easier to replace the firmware to the similar one or to upgrade (or downgrade) to any other official firmware for your model.