DeleteAllContacts

This app removes all the contact data for your Android device. It can help, for example, if you sell or buy a second-hand Android phone where you want to wipe all data.

Beware and please use accordingly and carefully, even if this feature is secured first with a start button, and then a confirmation dialog box !

The app proceed first with a global delete if it's possible, then complete it with a one-by-one approach if necessary. This approach should solve all problems related with contact data : for example, on one of our friend's smartphone, it helped destroying "stuck" SIM card contacts which couldn't be deleted with the contact interface

Documentation, and email contact available on www.squaresdesigns.com