i found fcc photos of this phone at https://fcc.report/FCC-ID/2APD4-A95J/5240933.pdf but it doesn’t look like testpoints have labels on the mainboard. i also found an xda post saying you could use jtag to unbrick it. i’m now at https://www.youtube.com/watch?v=QFAINhgJ-MM : How To Find Kcolo On Any Phone PCB To Fix Dead boot - kcol0 is related to the volume buttons - it can be found on any found on any phone - the vol up and down pads have an inner and outer circle - kcol0 is wired to the same side of both buttons, so it has conductivity either with both outer circles or both inner circles - these are side buttons so leads may not look like circles on board - it’s a little ambiguous, but i think the presenter may have been saying that only one side of the buttons is common, so that common side can be used as kcol0. uncertain. - short kcol0 to ground to use factory bootrom to reflash on xda it also said to insert a charged battery or it can bootloop.