GSM-Forum - View Single Post - how to fix 831 with ????????? serial number

Drug_Store · 11-10-2003, 20:36

Open the phone, replace UEM chip, use a proper tool to write IMEI again.
You can try resolder the UEM, and write the IMEI, but probably the chip is damaged so you might need to replace.

11-10-2003, 20:36	#2 (permalink)
Drug_Store No Life Poster Join Date: Sep 2002 Location: Portugal Posts: 8,456 Member: 15312 Status: Offline Sonork: 100.1576041 Thanks Meter: 1,097	Open the phone, replace UEM chip, use a proper tool to write IMEI again. You can try resolder the UEM, and write the IMEI, but probably the chip is damaged so you might need to replace.