IC not set or changed

[Reformatt]

Trying to read a Macronix 64MB SPI 25 flash IC off an ASUS motherboard (UX331UN). Detects the IC ok, but when you go to read, says IC not set or changed. Tried lowering SPI speed but makes no difference. Using a genuine Pomona SOIC clip BTW. Current version SVOD3 firmware and software.

Chip is still on board, haven't tried removal as yet since you normally get FFFFFFFFF when they won't read in cct. Is it a bug?

[admin]

Hello
we do not guarantee work through the clip

[pc-kronus]

Hello
I have the same problems since April 14, it seems that it says test pin ok and it is false, it does not write well, what solution does it have to put an old firmware, thanks

[Hlaskover]

I confirm this is a software bug. Using latest software makes many chips unreadable. Downgraded to 1.1.0.6 everything wokrs perfect using clip (POMONA). Had this bug for chip: U52 Winbond25064CVSIG 1121 , laptop model: Dell Latitude E6320 . Had to downgrade both software and firmware (work together).

[Desmondpyday]

Thats exactly what I was going for when I asked for the information. Those settings can make a difference.

Let me know if the behavior with the settings changed doesnt help.

[JimMcKinleypSGT]

Hi I had the same problem and it helped me. Thanks!

[outsider]

I confirm this is a software bug. Using latest software makes many chips unreadable. Downgraded to 1.1.0.6 everything wokrs perfect using clip (POMONA). Had this bug for chip: U52 Winbond25064CVSIG 1121 , laptop model: Dell Latitude E6320 . Had to downgrade both software and firmware (work together).

I downgrade software to 1.1.0.6 but how do You downgrade firmware?

[Reformatt]

I had an issue this week where I was getting this error on some SPI25 eproms, and not others. Also getting read issues/verification failures on others. I took my SVOD3 apart and found one of the PA1 (DMG1013UW) FET's was measuring different to the others Drain to Source. Correct reading was 0.8V in diode mode, whereas this one was 1.2V. Swapped it with another one on the board and now SPI25 eproms working again. So I've ordered these off Aliexpress as no one else seems to have them.

I was trying to read off a eMMC in 1 bit mode on a dead motherboard eariler this week, so potentially this damaged that FET. Or ESD maybe. For reference, other components on the ZIF board are NH2 (DMN2300U) and NG4P (TPD4E1U06DBVR).