https://boards.rossmanngroup.com/threads/820-000426-no-backlight.60053/
820-000426 - no backlight | Rossmanngroup Forums
HI All PPVOUT_S0_LCDBKLT - 1.3mv PPBUS_S0_LCDBKLT_FUSED - 12.86v LCDBKLT_EN_L - 12.72v PPBUS_SW_LCDBKLT_PWR - 12.87v PPBUS_SW_BKL - 12.6mv Is my Q7706 bad...
no backlightforums
https://boards.rossmanngroup.com/threads/a1502-no-backlight-c8352-odd-behaviour.63591/
A1502 - No backlight - C8352 odd behaviour. | Rossmanngroup Forums
Hi, Board = 820-3476-A I've been reading backlight sticky post and looking at potential failure using the two pics with all failure listed but I can't fix...
no backlightoddbehaviourforums
https://boards.rossmanngroup.com/threads/820-00840-no-backlight.61283/
820-00840 no backlight | Rossmanngroup Forums
Arrived with liquid damage but at the time was still working. After cleaning up and replacing liquid damage components in U8400 area backlight is now gone...
no backlightforums
https://boards.rossmanngroup.com/threads/solved-820-3437-b-no-backlight-no-power-from-battery.15209/
[SOLVED]820-3437-B No backlight, no power from battery | Rossmanngroup Forums
No backlight and no power from battery, history liquid damage (orange juice) PP3V42_G3H 3.4v PPBUS_G3H 8.3V (need 12v) SMC_BC_ACOK 3.4V PIN 17/18 OF...
no backlightsolved
https://boards.rossmanngroup.com/threads/00281-no-backlight-no-image-no-hints.62939/
00281 - No Backlight, no image, no hints | Rossmanngroup Forums
Not entirely sure of history, no water damage visible anywhere. Tried the usual SMC/PRAM reset. Bare board boots ok to OS on external. Screen seems...
no backlightimagehintsforums
https://boards.rossmanngroup.com/threads/solved-820-2533-no-backlight.36019/
[SOLVED]820 2533 no backlight | Rossmanngroup Forums
820 2533 no backlight I get .018v on backlight pins, I thought for sure the meant the one was going to be shorted, but when I take a diode measurement I get...
no backlightsolvedforums
https://www.bateraidanadaptor.com/x390-keyboard-laptop-thinkpad-x13-yoga-gen-1-x395-pointer-backlight-no-frame-us/
X390 Keyboard Laptop THINKPAD X13 YOGA GEN 1 X395 POINTER BACKLIGHT NO FRAME US | bateraidanadaptor
https://forum.m5stack.com/topic/8040/atoms3r-black-screen-with-uiflow2-firmware-backlight-works-no-image/8
AtomS3R - Black screen with UIFlow2 firmware (Backlight works, no image) | M5Stack Community
Feb 5, 2026 - @10sor wow, and factory demo works fine... i2c address issue? library issue?
black screen