[flashrom] HDD in-circuit reprogramming

[Thomasheidler]

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