I have a Nintendo Switch HAC-CPU-20 it charges fine but when powering on it shows th first nintendo splash screen and is then stuck on the Joycon connect screen, the animation of the joycons sliding into the Switch, and i can not get passed this screen at all.
I have tried the board in another Switch chasis with working Joycon rails and it does the same thing. I have also took diode readings from each joycon connector on the board and they look fine compared to the readings you can find on this site.
I have read on here that some people have swapped the IC labeled “PU” and this has resolved the problem, but again the diode readings of both the PU ICs appear correct from the information i have found on the is site.
any help would be appreciated.