@jpm Did the 8-pin in circuit probe work well for you? I did a lot of experiments like this, with an STM32 based DIY Flashrom device and the clamp only worked once every twenty tries.
It wasn't even a problem about the chip still being in circuit (it worked with a soldered in "programming connector), but more with the improper contacts made by the clamp.
Flashrom would recognize the chip, start flashing, and then have checksum errors when reading back to verify.
Is the glasgow more reliable?
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