Hi,
I hope this is the correct place to post about this device. I originally posted regarding this on iFixit so see the details from that post below:
"I'm hoping someone can give their opinion on the symptoms I'm seeing before I spend any more time and put money into this. I got this MacBook from a customer and after looking at it they decided they didn't want it.
It doesn't turn on and there's no visual signs of life. I have tried resetting the NVRAM, SMC, power cycling, unplugging the battery, using the charger with the battery unplugged. Removed the motherboard and tried cleaning it then putting back in but to no avail. The fan does spin for a second, then stops, then starts and repeats until the battery drains. The battery cells are flat. I have also used my dock and plugged it into my monitor but it doesn't pick it up. I've plugged my keyboard in and it looks to be turning on and off, seems the MacBook must be in a restart loop. The trackpad also clicks.
Any ideas or suggestions are welcome. I suspect the logic board is knackered.
Thanks in advance."
Since posting that, I have used a USB power meter and got this reading when charging - 20.04V and a max of 1.19 Amps when charging with the Steam Deck power brick I have. I don't have the original power brick as this was one from a customer who found it was broken one day.
I believe this is one we treated for liquid damage in the past but had the logic board replaced when it was under warranty. I can't be sure of that though. I have also tried to boot with the battery disconnected and just plugged into the power brick, no change, and without the display and trackpad connected (on separate occasions) but the outcome was unchanged, I think that's by design though.
I do have the schematics for the board and the corresponding PDF of many details but in all honesty, it is overwhelming and I don't know where to start being a beginner. If anyone could point me in the direction of what they would try first in terms of in depth troubleshooting and how to understand the schematics and PDF, I'd be very grateful.
I hope this is the correct place to post about this device. I originally posted regarding this on iFixit so see the details from that post below:
"I'm hoping someone can give their opinion on the symptoms I'm seeing before I spend any more time and put money into this. I got this MacBook from a customer and after looking at it they decided they didn't want it.
It doesn't turn on and there's no visual signs of life. I have tried resetting the NVRAM, SMC, power cycling, unplugging the battery, using the charger with the battery unplugged. Removed the motherboard and tried cleaning it then putting back in but to no avail. The fan does spin for a second, then stops, then starts and repeats until the battery drains. The battery cells are flat. I have also used my dock and plugged it into my monitor but it doesn't pick it up. I've plugged my keyboard in and it looks to be turning on and off, seems the MacBook must be in a restart loop. The trackpad also clicks.
Any ideas or suggestions are welcome. I suspect the logic board is knackered.
Thanks in advance."
Since posting that, I have used a USB power meter and got this reading when charging - 20.04V and a max of 1.19 Amps when charging with the Steam Deck power brick I have. I don't have the original power brick as this was one from a customer who found it was broken one day.
I believe this is one we treated for liquid damage in the past but had the logic board replaced when it was under warranty. I can't be sure of that though. I have also tried to boot with the battery disconnected and just plugged into the power brick, no change, and without the display and trackpad connected (on separate occasions) but the outcome was unchanged, I think that's by design though.
I do have the schematics for the board and the corresponding PDF of many details but in all honesty, it is overwhelming and I don't know where to start being a beginner. If anyone could point me in the direction of what they would try first in terms of in depth troubleshooting and how to understand the schematics and PDF, I'd be very grateful.
I've seen what this community can do, so I'm pretty sure you guys can help me out.
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