There are two types of formatting; repairing the firmware and wiping the phone completely. Both of these ways will allow you to format a Nokia 6120c. The first is a basic format. Type in the code *#7780# and it should restore your system without damaging files on the phone. If this doesn't work then the deeper format is *#7370#. This will wipe the phone completely. Please note that this won't affect internal memory cards.
If you can access your phone then you can go into Phone Settings and click Factory Settings. Click OK and type in the code 12345 and press OK. Additionally, you can try a reboot by pressing the green button, the * button, the '3' digit and the power button. Pressed at the same time these should reboot and offer you to pick a phone language, and then allow you to use the phone again.
Install the software from the CD and connect your phone to your PC via the USB cable that will come with the phone. Then, simply, open the software - whilst connected - and try to upgrade the firmware. If there is no update it will tell you, but you will also be able to just reinstall the previous version.
If you can access your phone then you can go into Phone Settings and click Factory Settings. Click OK and type in the code 12345 and press OK. Additionally, you can try a reboot by pressing the green button, the * button, the '3' digit and the power button. Pressed at the same time these should reboot and offer you to pick a phone language, and then allow you to use the phone again.
- Why would I format it?
- How do I install firmware?
Install the software from the CD and connect your phone to your PC via the USB cable that will come with the phone. Then, simply, open the software - whilst connected - and try to upgrade the firmware. If there is no update it will tell you, but you will also be able to just reinstall the previous version.