What adjustments did you make in baseflight? Can you reset the baseflight settings to see if all 4 motors spin again? Did you connect your signal grounds to the ESCs?
Maybe you need to calibrate your ESC’s again, this could be a naive answer, but something like this happened to a friend and the calibration process was the answer.
What adjustments did you make in baseflight? Can you reset the baseflight settings to see if all 4 motors spin again? Did you connect your signal grounds to the ESCs?