The reason for this situation is most likely that the battery has entered a dormant state or the battery has been damaged, and we need to try the following methods to activate it again.
1. Use the original charger to charge for 30 minutes;
2. If the battery is sufficient, try to enter the engineering mode to clear the cache and then restart
3. Connect the mobile phone to the mobile power supply or computer for charging.
If the above methods are useless, can only return to the factory
How long does it take to charge a new phone for the first time?
Do not look at the power of the new machine to charge it immediately, it is best to use the phone to power less than 20%-10% of the time in the shutdown to charge it. It is recommended not to play while charging, in case of overheating of electronic components and accidents. When the prompt is full, it is best to charge for about 15-30 minutes as much as possible.