What if SMS is not enough?

So is my N76. I took out my memory card and deleted everything in my mobile phone. Still the same.

It's useless to reply to the factory settings, and I can't receive the information.

I checked and finally got well.

Specific methods:

1. Initial recovery: directly input *#7780# with your mobile phone, and it is loaded. Ini file from your phone's rom, but at the same time, you can keep user data.

2. Complete recovery: directly enter *#7370# to completely erase the data on disk C. All data and applications stored by users will be lost and written into the default system file.

When using these two methods, the mobile phone will ask you to confirm and enter the security code (default is 12345). Files and applications in the E drive (memory card) will not be affected.

Just entered *#7370# and fully recovered.