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i have a 2015 A1502 screen thats stuck at max brightness bklt pwm is changing on the board as i lower and raise the brightness i tried changing the lvds cable and same thing has this happend with anyone or is this just a bad screen
I have a 820-00165 originally w.d. It would chime then a black screen would appear for around 15 seconds boot is slow and got stuck booting tried cleaning ME no change tried new bios and it was fine after pram reset but currently doesn't have the correct s/n was wondering if you could help me...
Nothing from diagnostics
Copied over original bios ME and reporgrammed
Do i look for a bios i have that works and clean me the same way and program onto this one or should a file from the forum work and clean me on that
i have a 820-00165 board liquid damage originally no backlight replaced lcd connector was in bad shape backlight works didnt boot into mac os got stuck around half way. Tried clean me bios same thing boots into windows smc bypass no change safe mode dosent boot into mac os.
Could this still be...
Wrote a clean ME bios file on this one and no change. Where can i learn about what would be an issue with the bios? And im using a file i believe i found on the forum that had a clean ME, are you saying that i need to clean the ME myself from a good bios because im not sure how to do that
I have a 820-00165 that had liquid damage, after ultrasonic it boots then after a minute or so shuts down. c5001 and c5020 were messed up replaced no change.
when it shuts i can short r5115 to turn it back on, tested without keyboard.
everything there pulses. pp3v3_s4 stays at 0.3v while pp3v3_s5 stays at 3.3v. s4 does pulse to 3.3 all other 3v3 lines pulse. everything on the s4 line looks clean should i look into that more or could it be something else