MCUmall EPROM BIOS Chip Burner Forum
MCUmall EPROM BIOS Chip Burner Forum
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 PLEASE HELP MX25L6406E 25Q064A

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T O P I C    R E V I E W
laptopexpert-ca Posted - 05/16/2013 : 13:44:19
Hi Everyone,
I am working on it for past two days, and no results.
Working on macbook retina 15inch, i removed MX25L6406E , install in programmer id check,read it , verify and save. Easy and i think everything is ok.
I removed the MX25L6406E, installed another MX25L6406E,id check, erase , blank check, write and verify . Looks ok . When i solder it back to logic board , computer turn on but no image on the screen, i mean only cpu getting hot. When i solder the orginal it is working.

I tried change the write speed, i repeat everything maybe 10 time always same result. NO clue what i am doing wrong.

I found another logic bord exactly the same just different bios 25Q064A,always getting id check error, in device i can not find exactly this part number. So i used W25Q64, and W25Q64CV.
i tried both , save bios from orginal and write to another chip.

Exactly same situation where computer work only with the orginal , the copy i make never work .

Any idea what i am doing wrong?

thanks a lot
4   L A T E S T    R E P L I E S    (Newest First)
khaahk Posted - 06/10/2013 : 01:09:15
If You still have the problem at hand, try to change the algoritm of the chip from W25X10_FAST to W25X10 in the devices.txt file. See if it helps.
The topic is here: http://www.mcumall.com/forum/topic.asp?TOPIC_ID=5106
ZLM Posted - 05/28/2013 : 23:18:04
it is possible to read the OPT chip. As long as the software support this feature.
laptopexpert-ca Posted - 05/24/2013 : 18:10:01
do you know how i can read the OPT section ?
is it possible to copy this chip?
thanks
ZLM Posted - 05/17/2013 : 15:58:18
It may be related to 512 bit secured OTPfor unique identifier. This is a special feature of this chip. This sector stores some security data and is not accessable by programmer if it is enabled the security.

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