Rubedizzle
New member
Hey there folks,
13" Macbook Pro mid-2012 (non-retina) i5 2.5GHz
820-3115
System will only power on after plugging in the charger, and will turn on automatically. System is completely unresponsive to the Power Button.
When system boots up, it works flawlessly, and can be on/in sleep for days on end and start right back up and work normally. Charger cable can be detached and it will work perfectly. When plugged in, get both green light on the magsafe and orange when charging. If I shut it off, I can't turn it back on unless I disconnect/reconnect the battery, then plug it in the charger.
Battery is showing 'Service Battery', but does charge, and hold a 4hr+ charge. When I first got this system in, the status was 'Replace Soon', and it has been sitting in storage for 5 monthes unused since then.
I believe system had some liquid damage based on the water stains on some pads (pictured), but it was cleaned with isopropyl before ending up in my hands, so unsure about the affected area.
Things I have checked:
R5014 has 3.47V on both pins
SMC_ONOFF_L 3.47V when on, doesn't move when power is pressed, stays at 3.47V. Measured from the few resistors near the keyboard connector.
Noticed there is no R5016 resister, just two pads, and doesn't look like there was solder there before. One side of the R5016 pads is 3.47V, the other 0V.
Don't notice any corrosion around U5010, and it appears to have PP3V42_G3H at 3.47V
Interestingly, if I measure SMC_RESET_L using the probe point above UF5010, I get 3.47V, but the computer shuts off immediately.
Photos attached of the U5010, SMC area, and R5016 area.
13" Macbook Pro mid-2012 (non-retina) i5 2.5GHz
820-3115
System will only power on after plugging in the charger, and will turn on automatically. System is completely unresponsive to the Power Button.
When system boots up, it works flawlessly, and can be on/in sleep for days on end and start right back up and work normally. Charger cable can be detached and it will work perfectly. When plugged in, get both green light on the magsafe and orange when charging. If I shut it off, I can't turn it back on unless I disconnect/reconnect the battery, then plug it in the charger.
Battery is showing 'Service Battery', but does charge, and hold a 4hr+ charge. When I first got this system in, the status was 'Replace Soon', and it has been sitting in storage for 5 monthes unused since then.
I believe system had some liquid damage based on the water stains on some pads (pictured), but it was cleaned with isopropyl before ending up in my hands, so unsure about the affected area.
Things I have checked:
R5014 has 3.47V on both pins
SMC_ONOFF_L 3.47V when on, doesn't move when power is pressed, stays at 3.47V. Measured from the few resistors near the keyboard connector.
Noticed there is no R5016 resister, just two pads, and doesn't look like there was solder there before. One side of the R5016 pads is 3.47V, the other 0V.
Don't notice any corrosion around U5010, and it appears to have PP3V42_G3H at 3.47V
Interestingly, if I measure SMC_RESET_L using the probe point above UF5010, I get 3.47V, but the computer shuts off immediately.
Photos attached of the U5010, SMC area, and R5016 area.
Attachments
Last edited:
