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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