MCUmall EPROM BIOS Chip Burner Forum
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 True USB Willem Programmer (GQ-2X, GQ-3X, GQ-4X)
 M29F400FB Cant erase

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T O P I C    R E V I E W
danmarq Posted - 05/17/2017 : 22:44:12
Hello guys, i have an GQ-4x4 1.0 , Soft 7.11

I can read an M29f400FB with ADP-019 v4.1, but cant erase or re write.

checked pins , usb cable checked.

Check ID say :
Device id (hex) C0EC
Manufacture not in library
type unknown device
revision -

But anyway let me read it

Any idea? :/

Image Insert:

204574 bytes
11   L A T E S T    R E P L I E S    (Newest First)
anniel Posted - 05/30/2017 : 14:43:11
quote:
Originally posted by supervizeur

You need to change the chip if you want to modify something.



True if you're dealing with a masked version.
supervizeur Posted - 05/30/2017 : 06:46:43
You need to change the chip if you want to modify something.
anniel Posted - 05/29/2017 : 09:48:10
quote:
Originally posted by supervizeur

Mask ROM are common in ECU.



True.
supervizeur Posted - 05/29/2017 : 06:22:37
Mask ROM are common in ECU.
anniel Posted - 05/20/2017 : 19:15:08
Maybe or it is a mask version.
danmarq Posted - 05/20/2017 : 15:25:56
I verify soft, contact pins and dump, it was ok

I buyed another ST 29f400 "BB" and i can read , erase and write.

Maybe old eeprom was failed

Thank you very much for your interest for helping

Kind regards
anniel Posted - 05/19/2017 : 04:33:04
When you say verify is ok, you verify against what file?
danmarq Posted - 05/18/2017 : 21:56:19
I try everything but i cant yet :(



Image Insert:

820480 bytes
anniel Posted - 05/18/2017 : 07:40:53
Your datasheet gives the same ID as a Micron. Could the ST be a mask?
danmarq Posted - 05/18/2017 : 06:33:09
good aparently, and verify is ok.
This is from an ECU EMS3134 what i need immo off

Is an ST chip , but only i can find this datasheet about it xxxxxxFB



Download Attachment:
1866755
anniel Posted - 05/18/2017 : 03:31:53
ID is no correct. The read is good or garbage?

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