How to enter and exit the Recovery mode?
1. Go to Recovery:
The mobile phone is not connected to any USB data cable. When the mobile phone is powered off, you can enter the Recovery mode by holding down the power key and the volume up key at the same time.
For some models, press the Volume Up key to select the Recovery mode, and press the Volume Down key to confirm the entry.
2. Exit Recovery:
1) Move the volume key and the power key is confirmed. Select "Restart the device" (reboot system now) or "Shutdown" (Power off) in the Recovery interface.
2) Press and hold the power button for about 10 seconds to forcibly power off the server.
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