How to reset or factory restore Oppo A31 (2015) device?
Oppo A31 (2015) is a smartphone that is no longer supported by official updates. However, there are still ways to reset or factory restore this device if it is not responding or you want to start from scratch. Here are the most common and recommended methods:
Method 1: Using Recovery Mode
1. Turn off your device and press and hold the Volume Down button and the Power button at the same time.
2. Release the Power button once the Oppo logo appears, but continue holding the Volume Down button.
3. The device will enter Recovery Mode, which will be indicated by the Android System Recovery screen.
4. Once in Recovery Mode, select "Wipe data/ Factory data reset" and swipe to confirm the action.
5. After the device is reset, select "Reboot system" to return to the home screen.
Method 2: Using ADB (Android Debug Bridge)
1. Download and install the latest version of ADB on your computer.
2. Connect your Oppo A31 (2015) device to your computer using a USB cable.
3. Open a command prompt on your computer and navigate to the directory where ADB is installed.
4. Type "adb devices" to make sure your computer can recognize your device.
5. Type "adb reboot recovery" to reboot your device into Recovery Mode.
6. Once in Recovery Mode, select "Wipe data/ Factory data reset" and swipe to confirm the action.
7. After the device is reset, select "Reboot system" to return to the home screen.
Method 3: Using Hardware Reset Button
1. Turn off your device and locate the hardware reset button, which is usually a small hole on the back of the device.
2. Insert a paper clip or pin into the reset hole and press and hold it down.
3. The device will enter a bootloader screen, which is usually a black or white screen with a menu.
4. Select "Wipe data/ Factory data reset" and confirm the action.
5. After the device is reset, select "Reboot system" to return to the home screen.
It's important to note that resetting a device will erase all data and settings, so make sure to back up any important information before proceeding with any of these methods.