In our description database there are 2 solutions for performing hard reset for Samsung i637 Jack.
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. Samsung i637 Jack device will be brought back to the same configuration as that of a brand new device.
1. Turn off the phone.
2. Now turn it back on while holding the 5/F button.
3. Format Menu will open eventually. When it does, press Master Reset. Done.