Hey, I made my own PCB for one of the sh1106 1.3" displays. I can get the I2C to work and get an image on the screen but the image is off by 75-50% and the backlight is off too. The display is really unpredictable with my PCB while it works well with the original PCB. What can be missing? I tried changing capacitors and resistors. nothing helped.
sh1106 Datasheet my schematics: the original schematics: display output:
I have been trying to figure this out for a while but just can't wrap my head around it. Any help is appreciated. The pictures are bigger if opened in new tab.