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this mobile unit nokia 6600 can be formatted just simply hold this buttons at the same time... power button, 3, *, and call button..then call button is the green button in the keypad..just simply hold it for a sec then formatting msg will appear in the screen of your 6600 after that your phone is now formatted.. and plus this..this solution can also solve this problem CONTACT RETAILER...hope this will help all 6600 users
I have the 6600, last week the mobile couldnt work. phone registration failed contact retailer message displays. i have many messages in that mobile. i contacted the retailer, but the retailer told only solution is flashing the mobile. shall i get back my messages in that mobiles please help me
hi, Your phone's memory card must be infected with virus or has some fault. Please remove the memory card and try to start the phone again. If it goes through, please back up the data in your memory card and format it. In most cases, this procedure solves the "Phone start up failed. Contact the retailer" error. I'd advice you to format your phones internal memory as well, it will flush out any errors present. save your "phonebook" data somewhere and Make sure your phone's battery is fully charged if not plug the charger in and proceed. NB: interrupting this process might render your phone useless. So, be careful.
To format press *#7370# it will prompt you for security code, enter it and the phone will reboot. Your phone will be reset to "factory settings."