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No signs of water damage or corrosion. It came in with a no-boot issue. Some strange behaviour is all ports drawing 5v 28mA. However, when I plug the master USB port into another laptop to check if it is stuck at DFU, another port that I try to power the laptop starts drawing 20V, 0.0A. I am...

This one came as not turning on. The board is clean, with no signs of corrosion. The power draw is steady at 5v 30mA. Although this is quite similar to Louis' TB Rom video I don't suspect that since the behaviour is steady on all four ports. PPDCIN_G3H = 5v PPBUS_G3H = 0v - not shorted...

Perhaps one of the infamous dead CPU issues, but I wanted to check if I can do anything before declaring it dead. Not much history other than "just stopped working", everything is extremely clean, resembling a brand-new laptop. It is drawing 20.1V, 0.6A, with no fluctuations. On one single...

Clean looking board, the only issue is that the touchpad and keyboard not working. The power button works, touchpad / keyboard pair is also confirmed to be good with another logic board. Checking touch pad connector voltages, the only problematic-looking one is PP3V3_S4_IPD at 2.1V. I traced...

All seems to be working fine. SSD is not detected (not with Option Key or Recovery Mode either) PP3V3 voltages are available. SDD_POWER_EN and SSD_CONN_RST_L pins are high. C3710-3717 seem healthy. What else I can check ? Thanks

This one came as no power, very small signs of corrosion, cleaned up, nothing creating short or discontinuity. No green/orange light, no fan spin, no warmth on CPU. It draws 25mA from the charger hence I checked PM_SLP_S4_L, 3.1 mV Performed the checks on repair.wiki: U1950 is corroded and...

A water damaged logic board. Cleaned up and replaced quite a few parts. However, eventually hit this issue. Upon applying power to the board, after about 1 second, R7020 gets extremely hot. There is no short to ground on either side of the resistor and each side reads 60-70K to the ground...

Hello This one has arrived with a complaint of intermittent shutdowns and the battery occasionally not holding power, with no signs of corrosion or prior work. Everything works fine however I observed the following symptoms (all tested without battery) - Continuous full fan spin - When I get...

This one arrived with no green/orange light at all. Physical examination revealed corrosion on C5002. After replacing C5002, I got USB activity and only with a screen connected booted up fine to the flashing question mark. I put the board in a case, connected cables and added an SSD; no boot...

This one came with a keyboard/trackpad failure. Everything else is working. The power button works. Watched Louis' video, tested if holding Option key was helping but no change. Started from the trackpad connector and found out that PP3V3_S4 was reading 2.1V. Traced it to C2952 which was...

Without screen, SSD, flex cable: Permanent green light, full fan speed, no sings of booting, no usb activity Without screen, SSD but with flex cable: Green/Orange light, full fan speed, apple chime, no usb activity With screen, no SSD but with flex cable, Green/Orange light, full fan speed...

Hello, Can I get a quick opinion here? A board with water damage mainly around C7002 area, was cleaned up, and resistors and capacitors were replaced. All works fine, other than the power button. I can login, and do everything, every key works but if I shut down, no way to bring it back up...

Hello, 820-3435-A arrived with water damage. The water ingress indicator near J8300 is red. Two pins on J8300 corroded (disappeared) and I found some mild corrosion at Q7706 area. The latter was minimal and looks alright after cleaning with IPA. Two pins missing are pin 3 and 4. Both are PPHV...

Another 820-00165 When the SSD is removed it boots fine to? folder. However, when I put the SSD in it first goes up to 500-700mA but after about 15 seconds it drops to 25mA and stays there. I am not sure where to start troubleshooting. (SSD is a known good one). Thanks a lot, Max

Hi all, A newbie here so bear with me if I ask something silly. 820-00165-A with no major apparent issues other than the backlight is not working, if this is the real issue. When connected to the charger, outside the case, the flex cable is removed, drawing 530-550 mA constantly, the CPU gets...