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replaced u7200 no change, 1.6v on charger output, no shorts on pp3v3_s5 p5vs3_EN_L is 3.3V p3v3s5_EN_L is 0.3v smc_pm_g2_en 0.185v removed u7840 and got 3.4v on pin 1, 1.28V on pin 2, 0.21V on pin 3, 3.3v on pin 6, 0.8v on pin 7, 0v on pin 8

yes genuine 85w charger, no battery to test with but power at battery connector is 0.15v on ppvbatt, on q7035 i get 15v on input and 0.6v on output but is not shorted to ground, smc_onoff_L does nothing

ok, the problem is no power, not turning on

green light is on, but the problem is still not fixed, what do you want me to say?

0.365V at pin 5 Q7221 2.990V at pin 2 Q7221

there is no D6990 on this board, i think green light was the charger or dc-in board, but it didnt change anything

that makes sense because the board can draw more current with a battery attached, thanks, I was using the magsafe 2 but getting a green light was a bit hit and miss due to the connector being a bit larger now changed to 85W magsafe L

Ok I understand about the wattage but won't power on without a battery? Why?

was using 85w magsafe 2, this only worked on some boards, now using 60w magsafe L SMC_ADAPTER_EN @R5085 3.396V

sorry, there isnt any, what would you look for next?

SMC_PM_G2_EN R7273 pin1 3.406v, pin 2 0v, after replacing i get both sides 1.4 Vto 4V, could u7840 be bad? pin 4 u7840 is 0.398volts

ppbus 12.61@C7331 , U7200 area was replaced, if i remember correctly the whole place looked messed up

changed adapter have green light, dont have battery, 3.32v@r3222, is your board view for this one messed up?

smc clear, u7000 clear, known good, SMC_BC_ACOK 3.374V@R6929, agreed, changed adapters now have green light, no change to other symptoms

3.40v @r5087

3.3V dead on pin 1 R1987

hdd connector ripped off the board pads pulled, connector replaced jumpers ran wifi connector ripped off the board pads pulled, connector replaced jumpers ran now no green light this is a strange one because over current protection circuit seems fine, nothing looks particularly fucked up, some...

something like this would have to run off an s5 rail, I'd start there, strange problem though, your a month late for april fools

is this no backlight or no display?

im going to say junk, check aliexpress but id say the customer wont want to pay the replacement cost, maybe offer data recovery