> Most common issue is power supply. When a board isn't designed to
> be flashed this way, voltage may leak to other components on the
> mainboard. Hence board-specific documentation is so important.
> Measuring voltage when trying to access the flash may give a clue.
I'd read that can happen on some boards but was hesitant to try to
program the chip with mains power connected. I don't want an $800
paperweight.
> Without documentation it's best not to apply voltage via the flash
> programmer (RPi in your case), in case you were trying this. Better
> is to use the board's regular power supply and making sure that it
> doesn't boot (i.e. stays in a soft-off / S5 state). And *not* connec-
> ting VCC to pin8. Again, measuring voltage at the flash chip.
That makes sense. I'll give that a try.
> That it's a WSON chip also doesn't make things easy. Did you solder
> something and can confirm connectivity? or how do you connect to the
> flash chip?
Ah. I didn't know what WSON was until just now. I have been using a
regular SOIC clip. No I haven't soldered anything. I'm not sure how I
will confirm connectivity other than by reading the chip. It looks like
I may need a special probe to interface with it though.
