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Uniflash problem with W49F002U
Posted: Mon Jan 24, 2005 5:48 pm
by ruelnov
I noticed that Uniflash could not write successfully to W49F002U flash ROM.
I have tried at least 5 known good chips (flashed successfully with AWARDFLASH), and all tests resulted in write error with the majority of blocks being skipped. I changed motherboards (VIA and SIS chipsets) but got the same result.
Is this a known issue with this chip?
Posted: Mon Jan 24, 2005 11:31 pm
by Denniss
Known issue - without dataheets not easy to know what's the problem.
I think Rainbow has fixed some incompatibilities with this type but not all with the latest version.
Posted: Tue Jan 25, 2005 10:45 am
by ruelnov
Denniss: Thanks for your reply.
But the datasheet for this W49F002U chip can be easily downloaded from the website of Winbond. I even have a copy myself.
To Rainbow: When can this issue be possibly fixed in Uniflash?
Posted: Wed Jan 26, 2005 2:11 pm
by Borg Number One
in most cases EEPROMS have to be cleared before they can be write again.
Uniflash does not have this feature to clear EEPROMS/Flashroms (yet

).
Posted: Wed Jan 26, 2005 8:43 pm
by Rainbow
Borg Number One: No, you're wrong.
ruelnov: What version have you used? v1.38 should work fine
Posted: Fri Jan 28, 2005 4:40 am
by ruelnov
Rainbow: I was using v1.37. OK I'll try v1.38. Thank you very much.
Posted: Fri Feb 04, 2005 8:15 pm
by ruelnov
To Rainbow:
Uniflash v1.38 now works fine with W49F002U flash ROM.
Great work on a great universal flash utility!