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When this issue happens during the shutdown, I told you that S0 state was present, sorry but it's only present for CPU VCore, but I have no rail present for the GPU S0 states: At those coils I have no power: L8360,L8310,L8930,L8960,L7550,L7560. I'm looking for the common point of all those...

After different test I think that it's not a backlight issue but a CPU issue as I've noticed that when the backlight turns OFF I'm loosing the Image also. I've noticed that sometimes, when I'm trying to turn OFF the machine from the OS, the Image and backlight turns OFF but the fans stay spining...

It's hard to tell if I have an image on the LCD screen as the apple Logo is not transparent on this model, so when I put my torch on the apple, I even can't see the light on the screen. However I 've put the torch on the screen directly and for me there's no image on the screen. I had No 5V at...

No History, Came from another store, had L9000 was missing, soldered it back: NOK Displays on external HDMI screen OK NVRAM Reset: NOK Had Flux around Q7080 and R7020 area No sign of WD but some few Test Points near R2655 turned slightly brown like some screws holes contours...

could you please confirm that those 4 pads are not connected any where.......if not that's the reason of my issue....

ok, I will ........I was excatly supecting the SMC again.... I will let you know Thanks

On Pin 1 of U6200 it's also pulsing and there's no short there as in diode mode I'm mesuring 0.497V on pin 1 of C6203.

Yes of course I've already tried, I didn't post it because it's acting exactly the same : fan pulses at full speed once then stops. Regarding page 72, sorry but I didn't got you, because everything is pulsing there, and when it's not, it's because PM_SLP_S5_L is missing. U6200???? are you sure...

For sure ! Your board would already be fried , and you with it..... Not possible as your charger is providing something like 4.3A max if it's ? 87W charger

SMC_ONOFF_L was shorted to gnd because of the SMC, I replaced it now the short is gone. PPBUS_G3H: 12.60V green light present Sometimes it's pulsing once up to CPU_Vcore and when it's not pulsing I have to short the power pads to make it pulse once in both cases after that pulse I'm loosing...

Yes you're right......wait the new trackpad and see Thanks

Hi Team, Last week I've fixed a 00045 board after reflowing the CPU (common failure), the machine turns ON and boots fine only if I unplug the trackpad on the end of the flex ribbon.......flex ribbon which is new. I'm waiting for a new trackpad to arrive to test. I think ( not sure at 100% )...

good thanks

Hi 2Informaticos, I've tried with a brand new 87W Type C charger, and this one doesn't adjust to provide the needed voltage regarding the mother board: It's only 5.2V 2.4A, 9V 3A or 20V 4.3A as writen on the charger itself, I've tried it on a 820-00045 (12 inch mb ), the charger provides 20V...

Thanks 2Informaticos...... As usual it's a plaisure working with you......

Hi 2Informaticos, Once back in the chassis, everything was OK , except the keyboard because of the WD. When Ishorted Pin 5 of J5713 the machine turns ON/OFF so need also to replace keyboard........ was a good troubleshoot........ You still have no idea why I had a 6259 instead of 6258 on that...

I've fotgotten to say that on pin 5 of the magesafe ADAPTER_SENSE I have 3.412V but no green light ( I've just had the green light once since what it disapeared ) I'm using official 85W charger....also tried with a 60W official charger and lab power supply with official 85W magsafe cord. I've...

Replaced ISL6259 by ISL6258: PPBUS: 12.58V But the board still has the same behiour: turns ON only on Battery or battery and charger both together. I would say, that if it's charging the battery, it's fine as the battery is supposed to always be installed......I have to check this...

Hi 2 Informaticos, team, I have this board on which they claimed had a WD but I didn't found any corrosion anywhere...... as this board is old I checked the resistance of pp3v42 to GND to make sure this is not a bad MCP failure: 0.8M Ohms: OK ppbus_g3h:8.17V pp3v42: 3.42V at U7000: R17/18...

Do you have another good screen to try ?