On 5/27/26 16:40, tctl5p9ik7vh--- via Flashprog wrote:
If the chip is on a mainboard, problems are likely related to the circuitry on the board. Best is to look into documentation for the particular board or its schematics if you can find them.
This is the mainboard here https://www.aliexpress.us/item/3256811444835229.html
I'm still looking for a datasheet. Do you have any suggestion what to look for in trying to track down the problem?
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. 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 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? Nico