Start up failed, contact your retailer

SOURCE: Nokia 3230 start-up failed

have you tried reformatting it??

try this

12345 is a standard code and 00000, but if you change it and you have forgotten your unlock code, you'll just have to reformat it

key combination which is used to hard reset the phone (similar to #*7370). It is useful in some cases, for example when the phone cannot reboot.

The trick is
Switch off the phone.
Hold down the following three buttons: Green (call answer) button, * button, and ‘3′ button
While holding these buttons, press the power button and switch on the phone
When the message ‘Formatting’ appears on the screen, release all of the buttons...

reformatting your phone will delete all your data and also will restore all the defaults of your phone, and any corrupted application will be reinstalled, but if the formating doesn't work, you'll just have to re flash it, the safe way is to go to a near repair shop of your phone and have then to re flash your phone,

SOURCE: mobile startup failed . contact the retailer

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."

SOURCE: nokia 6681 phone start-up failed. contact retailer

Dear friend, you need a flashing box, such as JAF, UFS, BB5 or MT..
Connect mobile with box, and do Factory Setting and format user area... 100% ok

SOURCE: Nokia 6680, Phone start-up failed. Contact the retailer.

nokia 6300 phone start-up failed

SOURCE: E72 Nokia message coming as

why e72 nokia message coming not appear name my contact, whereas the contact name is available