Before you buy a new cell phone or new tablet, please try the following procedure to repair your device. First charge your battery, backup your important data if possible and in most cases take out SIM and SD card before factory reset. It is impossible to recover your data after doing a hard reset, so online backup is always important. For all of your data, a backup should be done on an external device, hard drive, raid system or media. With or without insurance, if your cell phone lost, damaged or stolen at least your invaluable data is backed up in a safe place. If you are about to sell your phone and you want to wipe your personal data, or if your phone affected with virus you have to do a hard reset. In some cases, you can delete the forgotten password or lock pattern from your device as well. All information is for devices with stock based ROMs. If you are using rooted device, always back up your EFS folder first, containing your IMEI info, etc.!


    Nokia 5800 hard reset

    Restore the original factory settings

    Restore original settings
    Select Menu > Settings and Phone > Phone mgmt. > Factory settings.
    You can reset some of the settings to their original values. To do this, you need the lock code.
    After resetting, the device may take a longer time to power on. Documents and files are unaffected.

    Nokia 5800 hard reset with buttons / keys


    Press and hold GREEN + RED + CAMERA when powering up, then input default 12345 security code.

    Reset the Nokia 5800 XpressMusic device

    1. Switch off the device. 2. Remove the battery. 3. After a few seconds, re-insert the battery, and switch on the device.