Isolated
Member
Hello,
I have an 820-02020 A2338 that has no backlight. There was heavy liquid damage and corrosion around UP800 and the big PPVOUT_LCKBKLT caps. Replaced RP850-553 as they were cooked.
100% confirmed that image is displaying and have tested with a known good donor M1 display. Laptop works fine on a dock to output video too. Touchbar works fine as well. DFU revive is failing for some reason. From other threads ive read, could this be a U8100 issue?
Thank you for your time!
I have an 820-02020 A2338 that has no backlight. There was heavy liquid damage and corrosion around UP800 and the big PPVOUT_LCKBKLT caps. Replaced RP850-553 as they were cooked.
- PP5V_BKLT_A = 5v
- BKLT_EN_R = 5v
- ISNS_LCDBKLT_N = 12v
- ISNS_LCDBKLT_P = 12v
- BKLT_SD =12v
- LCDBKLT_SW = 0.2v
- Replaced UP800 and same issue and voltages
100% confirmed that image is displaying and have tested with a known good donor M1 display. Laptop works fine on a dock to output video too. Touchbar works fine as well. DFU revive is failing for some reason. From other threads ive read, could this be a U8100 issue?
Thank you for your time!