SOURCE: How do I downgrade my Nokia E63 firmware from 200.21.012
you just dial *#7370# and off you go, your firmware will be refreshed,,, it worked for me with that same problem..dont be alarmed when the screen goes dark. it is just normal...be sure to back up your phone contacts
SOURCE: how to flash my nokia 5310??? i'm having JAF and
the problem is you are using windows 7 , it does not supports some of the old version of software, try to download new software from official size for win7, or try to format using phoenix by usb cable
here is tutorial how to format using phoenix
http://www.fixya.com/support/r5875102-format_nokia_mobile_phones_3110c_2700c
SOURCE: i need jaf flasher interface
You can find the drivers for your device here:
www.driverguide.com
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