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The customer complains that they made a restart to the MacBook Pro and then it started refusing booting into macOS. Sometimes it turns on with a black screen then it shuts off, sometimes it shows the Apple logo only (with the progress bar) and shuts off. SMC, NVRAM were made but did not...

Came in with a short on PP3V3_S5.. I injected 1 volt and PCH was boiling hot.. I measured caps behind the PCH like PP1V0_SUS, PP1V8_S0 and PP1V_SUS_PCH was shorted to ground.. I put a new (brought from AliExpress) PCH chip on it and readings all returned to normal but still the board taking...

Hi, board came with no signs of life whatsoever, taking only 5V.. measured PPBUS and it was partially shorted (I kinda know this is not an easy one when it's a partial short) around 9 ohms in resistance and 0.012 in diode mode. Injected 2 volts since 1v was not enough and my initial suspicion...

Came in with a little teeny tiny speck of dust on U9300 and R9310 resistor above it. Removed the chip, cleaned it up and install new resistors and few caps around it.. still 5V.. I took few measurements PPDCIN 5V (diode mode good according to OBD) PPBUS 12.27V (diode mode good according to OBD)...

A2141 came in taking 5v, 200-250 milliamps... I've taken some measurements and found PP3V3G3H_RTC reading a little lower than expected in diode mode.. I looked in the the thermal camera and found U6960 (PP3V3G3H_RTC VR) to be heating up.. I replaced it. Board still taking 5v 200-250 milliamps...

hello, this board came in for liquid mainly on the trackpad connector / battery.. PPBUS was shorted to ground until I removed the trackpad connector on MLB and it was gone.. I noticed that the backlight IC had minor corrosions around it.. I ordered a bunch of ICs online and replaced it.. the...

This board came in taking 5V only.. It had prior liquid and prior board repair.. the work was done on UB300 area.. and PP3v3_G3H cap CB300 was removed completely.. I suspected the liquid damaged that cap and Mr. repair man just popped the cap and it worked.. for a while at least and now its...

A2338 - Pristine condition.. I took out of the board and inspected it.. nothing.. as if the computer is barely used even. Anyway, customer said they tried erasing/formatting it and it got stuck on Apple logo preventing to go further.. I asked them why they tried to erase it from the first...

Hello, A 820-01949 came in with one port not working at all and all three giving 5V.. I marked the bad CD3217 and it was U3100_T. I was able to verify it was bad by measuring PP5V_S4_XT_USBC; it was 0.045 (diode mode) shorted to ground.. where it should be 0.200+ My question is; I don't have...

Came in for liquid damage on Right I/O experiencing no Audio at all; Mic is working, output is shown in system settings, audio jack working OK. Tried known-good Right I/O with good known speakers with good cable and still issue is not resolved Tried DFU and restore with fresh macOS; still...

This board came in for no power; PPBUS was shorted, inject 1V and took off the bad cap, which was C7324.. now PPBUS is clear of short. But the board is still not powering on; after visual inspection I found out that had corrosion on pin #2 and #3.. I replaced the chip and the board is still...

Hello, This computer firstly was brought in for a no power issue. Visual inspection showed no corrosion whatsoever, but showed one of the CD3217 blown up. After replacing it the computer remained taking 5V on one port and 20V on the other although the CD3217 I took is from an M1 MacBook Pro...

Hello, I'd like some help to identify the value of the burnt component on the Angle Lid Sensor of A2681 MacBook Air M2. I know that I can get a brand new ALS and move the chip to it but I prefer to repair the current cause I don't have any spare parts for it + don't wanna wait for the part...

This A1534 was brought in for a screen and battery replacement; it had no power on issues. After the screen and battery change up the computer refuses to power on; ammeter switches to 20V successfully but without any power draw; 0.04 amp. I checked PPBUS it’s there 8.6V or 8.7 something like...