Tian Mi Rubik's Cube tablet sometimes does not charge. What's the matter?

According to your description, I suggest you try the following methods:

1. Stop charging test;

2. Replace the charging position to eliminate the charging problem caused by intermittent contact of the socket;

3. If conditions permit, please replace the original charger for testing. Or send it for repair and inspection;

4. When charging, if the mobile phone is equipped with a third-party plug-in such as a charging doctor, it is recommended to test it after unloading;

5. Check whether there are foreign objects in the flat charging interface, such as liquid inlet and sundries, which are caused by poor contact between the flat charging interface and the charger. If this is the case, it is recommended to send it for repair as soon as possible;

6. Back up the data of the tablet computer (phone book, SMS, pictures, etc.). ) and restore the phone to factory settings (enter phone settings-reset-restore factory settings).

If there are still problems, it is recommended to go to the local customer service center for inspection and maintenance.