I have the board ACLU1/ACLU2 UMA NM-A272 Rev:1.0 with lenovo IT8586E and in coil LE2 & LE1 I measure short. I think the chip is off.
Can anyone help me how to program it again? I mean where is the pins for programming and witch programmer I need. I already have TL866a
Finally I fix it with new empty chip from my chip supplier. The chip in macbook cannot be read it from any programmer. Maybe it is locked. So now we must replace it with new bios chip.
I tried a lot ways to read it. It is not possible. After a big research I found the programmer that It can read this chip. The programmer is RT809F . Maybe I must buy it. Right? thats your programmer that you had read this bios chip?
This is for MX25L647E but I dont have this. I have the chip MX25L647EZNI-10G which is different. which not included in this list. But I will try a new connection.
no the chip. is ok. I put it again in the motherboard and the mac turned on and show me the lock button. This is the reason that I need to flash it. Is that possible with this programmer? Which programmer did you use for this chip?
My bios chip MXIC L154615-10G MX25L6473EZNI in motherboard 820-4924-A . My programmer is Minipro TL866A and also I have adaptor for low volatge bios chips (I think 1.8V).
Can I flash it with this?
Or which programmer I need?
Every week I have 2-3 of these laptops with no screen problem. I had try the bios upadate and reflow gpu but never works. is that possible to be faulty something else? I make these steps in 10-15 laptops. Maybe must replace the big bios chip?
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