My phone will not switch on beyond the keys lighting up. I used a2uploader and got a "can't get NET header" error when using file system tool. I got "[a2_fout_ssw] can't get NET header"when trying to flash the main firmware using R3EG004_MAIN_GENERIC_MD_RED52.mbn (could not find R3EA3037 as previously on phone). Help!!! how do I get this phone to work? Do I need to replace the file system and lose my data?