Will second-hand mobile phones reveal personal information? What should I do to eliminate old mobile phones?

It is possible that second-hand mobile phones will reveal personal information. The most common thing is that some people do these things and find some telephone information from old mobile phones. For some people, it is the most common to keep some phone information from old mobile phones. Some people often keep some bank information and a lot of transaction information from their old mobile phones. Some bank information and a lot of transaction information.

Safe disposal methods of old mobile phones;

After the important data is backed up, restore the factory settings or format the phone.

Access some irrelevant content or large files (such as movies, useless pictures, etc.). ) many times, and fill the storage space of the mobile phone.

Install a "file shredder" on your mobile phone to completely erase it, or go to a regular mobile phone recycling agency or maintenance center to ask professionals to completely destroy the mobile phone data.

If the phone has a memory card, try to put private files in the memory card. When changing a mobile phone, just take out the memory card and plug in a new mobile phone.

Never throw away your mobile phone as domestic garbage.

The safest way is: don't store important personal information in your mobile phone.