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Go Back   GSM-Forum > GSM & CDMA Phones Hardware Repair Area > Hardware Repair by brands

Hardware Repair by brands All about hardware problems sorted by brands inside subsections.

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Old 03-08-2002, 07:09   #1 (permalink)
Insane Poster
 
Join Date: May 2001
Location: Europe
Posts: 72
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GF768 flash chip problem


Hi, I can't flash soft to GF 768, soft shold be ok- using saras Ericsson tool V1.7
I can read and program eeprom, but I cat'n to flash firmware :-(
When I reading flash,it always stoped after 81 bytes read.
I tryed to replace flash (original - TE28F008 with T28F008)
and phone can't to enter test mode.

So I was put the original flash back and now I can enter to test mode and operate with eeprom.
But still can't flashing :-(
Please tell me, what I should to check first.
(what is the erasing and flashing voltage on flash chip?)
Does anybody have service manual for GF768 ?
I have some ser. manuals, we can exchange..
Thank U for any idea
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