Second-hand mobile phones sold how to prevent data be recovered

CodePudding user response:

Mobile phone flash should be restored after the data.

CodePudding user response:

reference 1st floor wateryhy response:

phone flash should be restored after the data,

Can use the equipment doesn't work

CodePudding user response:

In general more effective way of preventing recovery is constantly rewriting the memory data, make the new data covering the old data, rewrite the more, the smaller the possibility to restore, the greater the cost