Hi!Press and hold the power key to exit fastboot and restart the volume down key and power key to forcibly shut down the volume up key and power key to forcibly restart.
1. Exit method: press and hold the power key+volume decrease key at the same time, and it will automatically restart and enter the system after about 15 seconds;Press the power button for more than 10 seconds to force the machine to start; In this case, check whether the phone case is used. It may be that the phone case has pressed the volume increase key, or the volume key has failed, so pressing the power on key will automatically enter the fastboot mode; 2. For systems from different manufacturers, the way to enter the fastboot mode is different, and the interface after entering is also different.The literal translation of fastboot means fast start, which is also called line brush mode in Android operating system.This situation is generally caused by system startup failure or improper user operation.
Extended data: Common troubleshooting of mobile phones: Symptom: The phone crashes when it is turned on 1. If the phone stops at the "LOGO" interface after power on, you can try to restart it after power off to see whether it can enter the system interface normally after power on. 2. In addition, if the mobile phone fails to access the mobile phone system interface when it is powered on, check whether the progress bar is displayed on the mobile phone. If there is a progress bar, it is caused by the mobile phone system update. Regardless of the wait for a few minutes, it will automatically enter the mobile phone system when the system update progress is completed. 3. If the above reason is not the case, and the boot interface is always displayed, the phone may crash. You only need to restart the phone to solve the problem. 4. If it doesn't work, and there is no response in the power on interface for several minutes, please try to use the mobile phone data cable to charge it or connect the mobile phone to the computer to see if it is normal. 5. After the above operation, if the phone is still displayed on the power on interface, you have to wait for the phone to run out of power, then recharge it and restart it to see if the problem is solved.
