How to solve the problem that Nubian Z7MIni can't send text messages?

There should be something wrong with the SMS APP, or you haven't upgraded the latest system. Of course, it is also possible that your phone card is dead, or there is something wrong with the account you sent. Firstly, the system is diagnosed and cleared.

There may be too much cache in the system, which is out of order. You can try double liquidation. If not, you can change your mobile phone.

The method is as follows:

1: Shut down completely first.

2. After a complete shutdown, press and hold the Volume Up button+Power button, and press both buttons at the same time. After a while, enter the recovery mode. Note: In recovery mode, press the volume up and down keys to indicate selection, and press the power key to indicate confirmation.

3. After double-erasing enters the recovery mode, whether your mobile phone is restored by the system itself or by a third party, whether you are in Chinese or English, as long as you have erased data/restored factory settings, Chinese means: erase all data/restored factory settings, and Chinese means: clear cache.

4: Press the volume button to select Erase Data/Restore Factory Settings (Chinese version: Erase all data, that is, restore factory settings), then press the power button to confirm, and then select Yes-Delete all data.

5: Press the volume button to select the erase cache partition (Chinese version: clear cache), then press the power button to confirm, and then select Yes-erase cache.

6: Then choose to restart the system now, press the power button to confirm and start the phone.

If it doesn't work, try another calling card.