All Android devices have a recovery mode hidden, the famous Recovery mode that more advanced users change it for an alternative one (ClockWork Recovery or TWRP, for example) to be able to install ROMs and root their devices, but the standard Recovery also offers very practical options that less experienced users can use and that they can take out out of trouble.
The recovery mode It is a system partition and system independent boot, so if our Android does not start we can access this recovery mode to try recover our Android device.
To enter recovery mode we have to start with the device turned off and perform a series of combinations. Below in the steps we show you some of the most frequent combinations specifying that of some manufacturers. There are manufacturers that, depending on the model, use one combination or another, so you have to be testing or doing a simple search on Google to find the combination of our model.
- Turn off the device.
- Nexus, Motorola and others: Press and hold the button to decrease the volume and without releasing press the button switched on until the device turns on.
- HTC and others: Press and hold the buttons to go down Y raise the volume, and without releasing, press the button switched on until the device turns on.
- BQ and others: Press and hold the button to raise the volume and without releasing press the button switched on until the device turns on.
- Samsung: Press and hold the buttons to go down Y home, and without releasing, press the button switched on until the device turns on.
- Sony: Turn on the device and press and hold the button raise the volume when the Sony logo appears and the LED light turns pink / amber / orange.
- Press the button decrease the volume several times to select the “Recovery mode” option.
- Press the button switched on to restart the device in recovery mode. An image of an Android will appear with a red exclamation point and the words “No commands.”
- Hold down the button switched on and press the button to raise the volume one time.
In many devices, the following steps must then be performed:
With the help of a computer
If we do not find the combination of buttons we can use our computer to access the Recovery. If we install the Android SDK, with the SDK Tools Only we have plenty, together with the drivers of our device we can access the Recovery mode executing a simple instruction from a terminal or command window. Connected our device to the computer by USB and inside the folder platform-tools from the Android SDK we execute the command:
adb reboot recovery
Recovery Mode, its two most practical functions
Once inside the recovery mode we find two very practical options. The first one is the “wipe data / factory reset” option to factory reset device, a very practical option if we see that our device does not start. We will move through its menu using the volume buttons and select the option marked with the power button.
The second very practical option is “wipe cache partition” which allows us clear temporary data from the operating system cache which will allow us to free up some memory on the device by eliminating the junk files that have been created after months of use. This option is not recommended to be used frequently, only very occasionally.