In our description database there are 3 solutions for performing hard reset for Nokia C7.
Choose the first method and follow the steps to perform a hard reset. If the first solution does not work, try the next method.
Please remember! Hard reset will delete any and all data your device contains; like pictures, contacts, messages, apps etc. Everything. Nokia C7 device will be brought back to the same configuration as that of a brand new device.
1. Press-hold the Power button until the phone turns on.
2. Now enter Menu. From there, go to Settings > Phone > Phone management > Factory Settings > Delete data and restore.
3. Last of all, confirm the hard reset process by selecting Yes. Voila, done.
Instruction II:
1. Power up the phone.
2. Open the dialer, enter this code into it - *#7370# - and confirm.
3. Device will reset and restart.