Hi,

what does „other chips work fine” mean? With the same WD HDD setup? Or on other 
HDDs/Boards?

Which programmer are you using?
Could you provide a logfile with the output of flahrom when trying to detect 
the chip and running with the –V parameter?

> Will supplying power through 3.3V Vcc and SATA connector at same time fry the 
> chip?
It should not. If SATA is 3.3V as well (not sure if SATA uses 5V?) and you 
connect the Ground there should not be fried nothing. But on the other hand I´m 
not sure if this is your real issue. Better you do steps mentioned above first.

Regards,

Simon


Von: Thomasheidler via flashrom <[email protected]>
Gesendet: Samstag, 2. Januar 2021 11:48
An: [email protected]
Betreff: [flashrom] HDD in-circuit reprogramming

Hi

I need to reprogram the firmware on a WD HDD with SOIC8 Winbond chip supported 
by flashrom. I tried reading in-circuit but my programmer does not detect it 
(other chips work fine). Probably other components are drawing voltage so I 
disconnected Vcc and tried to power it through regular SATA connectors which 
didn't work. Do you have any recommendations how to workaround this issue? Will 
supplying power through 3.3V Vcc and SATA connector at same time fry the chip?

Thanks for your help
Tom
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