Hi,

I've a problem with reading the chip 25Q064A i use tl866cs and ezp2010 both off them doesn't recognize it some help will be appreciated

MacBook Pro A1502 820-3476-A 25Q064A

try 25L6406E or ST Brand or Micron brand
above 1 of 3 will work hopefully
and your ic brand is Numonyx also search for it your programmer.

unfortunately without success

then problem is mainly with your ic
change your ic.bios file is availible on this site
is this simple?

I tried a few dumps system starts very slow. But yesterday i solved the problem i shorten the cables to 1 inch after then i was able to read and write

Problem is in 1,8Vcc at "Q" series chips.

I modified my 5VDC SOIC8 ZIF adapter.
1. I cutted VCC line from ZIF to DIP.
2. Added in line two diodes in sequence, it make voltage drop approximative 1.4V 5-1,4 = 3,6v
3. Added a jumper between ZIF Vcc and DIP Vcc pins. It restores 5Vcc in other cases.
4. And then I added another line of two diodes in cutted Vcc line and added one more jumper.
3,6V-1,4V=2,2V This is enough to operate with "Q" series SPI FLASH ROMs.

In total I made power bus in this mode:

[2,2VDC] ZIF-Vcc-|<|-|<|-.[3.6VDC].-|<|-|<|-DIP-Vcc [5VDC]

And all works excellent!