Hi,
Yes aZyWeRks & Kilowat are right,maybe you are flash it with 2mb file(with eeprom) or flash it differ of PPM pack.
1st you must check IMEI(*#06#)whether same with IMEI sticker(on back of phone),if same that maybe is differ of PPM pack.if that is not same you must flash back your 2mb backup(with eeprom).
Good Luck
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