Deleting personal data on Android and iPhone can help you avoid the hassle of leaking it.Most cases of phone data leakage occur at the shops where you give them a fix. Customers usually give their phone password to the shopkeeper, which makes it very likely that they will secure it.
It is important to carefully place your phone in front of the shopkeeper. Also, if you want to delete your phone data, reset it to factory settings first, then add and delete additional data. Repeat this process several times, as it will automatically delete your required data.
In addition, software can be used to delete data. For this purpose, install your phone with a computer using C Cleaner and Eraser software and delete it. No one will be able to retrieve your data with this process.