Hi, I had a similar problem but solved it by having a common GND between rpi4 and PSU, I connected GND on rpi to GND on the PSU and the flickering was gone. B.T.W I have the rpi powered by a separate psu
//roamer
Hi, I had a similar problem but solved it by having a common GND between rpi4 and PSU, I connected GND on rpi to GND on the PSU and the flickering was gone. B.T.W I have the rpi powered by a separate psu
//roamer