Viber for nokia 6680 - Nokia Computers & Internet

SOURCE: how to reprogram nokia 6680 how

You can able to format your mobile phone by simply typing *#7370# and a question will appear then confirm it, then next step type your lock code, your phone will restart and fully reformatted. (Note: BEFORE DOING THIS YOU MUST BACKUP ALL YOUR FILE SAVED ON YOU PHONE MEMORY, AND I SUGGEST YOU MUST REMOVE YOUR MMC BEFORE DOING THIS)