Thanks!
whenever I search I come up with things like this: Guide: how to flash ATtiny13a based drivers (NANJG, QLITE, etc.) with custom firmware
talking about a generic driver / the image of the circuit board doesn’t look like what’s in the convoy (at least while still installed in the flashlight).
If I have to take the flashlight apart to get to the other side of the circuit board, I think I’d pass rather than risk damaging things : )