If the solar power bank screen shows charging under strong light but the battery cannot be charged, it may be due to the following reasons:
1 The battery has entered standby mode. ;
2, the external battery is locked.
Solution:
1. Take out the battery for 5 minutes, insert it and use direct charging to charge for at least 30 minutes. Or use a data cable to connect the computer and cell phone for more than an hour, then try to turn it on again.
2. The external battery is locked and needs to be reactivated. Find an anti-theft door key (other metal objects can also be used) and insert it into the U port, take it out and charge it, and the activation is completed.