hard reset Motorola ZN4
You can permanently erase all user data stored on the phone, and reset settings to factory defaults by performing a Restore.
To perform a Phone Restore:
1. Tap Menu
2. Tap Settings
3. Tap Security
4. Enter your 4 digit unlock code. (Default 1234, 0000, or last 4 digits of your phone number)
5. Tap Restore Phone
6. Tap Yes when prompted with the following message Permanently Erase All User Data & Reset Settings To Factory Defaults?
Note: You will have to dial *228 after the phone power cycles to re-program the phone.