How to dispose of old mobile phones without leaking secrets? Ask for answers.

Methods to avoid leaking secrets on old mobile phones include: restoring factory settings, opening key applications to view, filling up the phone with large files, and using the software’s shredding function. The details are as follows:

1 , restore factory settings for Android and iPhone. This function is available in the settings of every mobile phone. After restoring to factory settings, don’t forget to choose to erase all content and settings and clear internal storage data. At this time, after shutting down and restarting, you will find that the interface of the phone is no different from when you first bought it.

2. Open key applications to view. Open the file manager of the Android phone to see if there is any data in it. On the Apple phone, open key software such as the photo album, text message address book, etc. to see if there is any data that has not been deleted. If there is, just delete it.

3. Select some large videos to copy to the phone’s memory to overwrite all the original old data. Fill up the phone's memory to achieve the purpose of complete erasure. Because the principle of mobile phone storage is very similar to that of computers, deleted data is not really deleted and can easily be restored by professional data recovery organizations using technology.

4. If you are still not at ease, then download a security software such as Mobile Guard from the app store, use the shredding function inside to completely shred all the built-in information files, and download a few more security software. Use them one by one, and you will be assured.

Notes:

1. Old data will be completely cleared only after the phone memory is completely overwritten by new data.

2. If the data involving personal information is not overwritten, the data may be recovered, which may cause the leakage of personal privacy. Therefore, it is best to overwrite and delete multiple times.