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I tried restore option just now - confirmed with customer for approval. The message shown is the exact same as if I were to do a revive. The System cannot be restored on this device. The operation couldn’t be completed. (AMRestoreErrorDomain error 6 - Failed to handle message type StatusMsg...

When trying to revive T2 in DFU mode I get the following message. The System cannot be restored on this device. The operation couldn’t be completed. (AMRestoreErrorDomain error 6 - Failed to handle message type StatusMsg (Operation failed)) [AMRestoreErrorDomain – 0x6 (6)] This happens on the...

Thanks. It is likely T2, I will look into DFU mode. Under the thermal camera, T2 and the SSD's are the only chips heating up.

Hello, I have a MacBook here that does not want to turn on. On the charger, I can see 0.04 amps for a split second then 0 amps for a few seconds and then it cycles again. No signs of liquid damage. Where do I even begin? PPBUS_G3H = 12.6 volts (0.398 resistance to ground when off) PPBUS_HS_CPU...

I’m going to search for a ROM to rule out the BIOS. Does anyone have a link to a download? I tried one stick, in each slot - no go. I’ll try with PC3 vs PC3L when I get the chance. Also, tried new CMOS battery.

Disconnected everything except 12V, left speaker, CPU, couple RAM sticks and still 3 beeps. I also disconnected RAM sticks and it gives me 1 beep in this case. Put it back, 3 beeps. PPVDDQ_S3_DDR = 1.5 volts steady R5260 / R5261 = 3.3 volts for PCH / Memory Channel A & B SMBUS pull-up resistors...

Hello guys, I have an 820-3299 that originally had a question mark issue. We decided to switch out the hard drive with an SSD and when putting it together, it no longer wants to boot and has 3 beeps, few seconds pause, and 3 beeps again until I power it down indicating RAM detected in bay but...

Alright, I kept Q8105 off. 3V3/5V_S0 and 1V35_S3 all present. I replaced U7200 again and CPU Vcore all 3 coils went between 1.2 to 1.6 volts, fan spin for a good 5-10 seconds and then went dead again. Replugging the power and it did the same thing. Did it a 3rd, 4th, 5th time, etc and now it's...

Hello, I receive a MacBook Pro that does not want to turn on. I found there was a shorted U7310 (unsure if CPU is fried already). Replaced, fan spin and was ready to put together to test, but no longer getting a fan spin after unplugging and replugging charger. Checked ALL_SYS_PWRGD not...

New trackpad fixed the issue of high fan spin. After a while it actually booted into the login screen. Trackpad and keyboard worked perfectly for a bit. After testing, I was about to close it up and marked it as fixed until all of a sudden it turned off. Thought it was because I didn't login on...

Tried booting into an installer (holding option key), with and without keyboard/trackpad connected, with and without SSD connected, different combinations and it still goes to just the Apple progress bar. It did boot once to the login screen prior to the battery replacement and the customer did...

Hello guys, I have an 820-00840 that had corrosion on the battery connection (battery itself and not on the motherboard). There are also red indicators showing there had been moisture around the board, but corrosion is pretty much non-existent - looked everywhere. The MacBook turns on, but gets...

Hello, both USB ports are working. 14. SMC_TPAD_RST_L 3.42 13. PP3V42_G3H 3.42 12. SMC_LID 3.42 11. SMC_ONOFF_L 3.42 10. PP5V_TPAG_FILT 5 9. SMBUS_SMC_MGMT_SCLK 3.3 8. SMBUS_SMC_MGMT_SD 3.3 7. GND 6. USB_TPAD_CONN_N 2 (this is when it stops working) 5. USB_TPAD_CONN_P 2.8 (this is when it...

Hello, I have a 820-3023 MacBook Air with a keyboard / track pad issue. I found corrosion on the trackpad connector which I replaced and trackpad started working as well as most of the keyboard keys. I replaced the whole keyboard and now both the trackpad and keyboard works. After a day of...

Hello, I received a MacBook with keyboard and trackpad issue. There was water damage on the trackpad connector and keyboard itself which I replaced both already. I also found that the R4830 pull-up resistor for the 3.3v to pin 10 was fried and giving 0 volts. Replaced the resistor and the...

This is what I see. Looks like one legitimate entry: -bash-3.2# xartutil --list Total Session count: 2 Entry: 0 UUID: 00000000-0000-0000-0000-000000000000 ; Session seeds: 3 Entry: 1 UUID: 243CEC26-CB1F-47F2-B906-7D73B06E9B0F ; Session seeds: 2 -bash-3.2#

Working on this MacBook again and target disk mode did not work with full security, but after numerous tries of getting into recovery, I was able to get in with terminal access, etc. I am not too sure why it was not working before. Looks like it is a corrupted partition. I found that the...

I have an 820-00850 with no sign of liquid damage for data recovery. The customer is unable to login to his user and says he is 100% certain he is using the correct password. When trying to use the Reset Password feature, after a few seconds of the "examining volumes" screen, we are presented an...

I found a short on PP3V3_S4 = 0.005 resistance to ground. Only 0.14 volts. Time to investigate..

Everything seems to point back to a U9300 issue. Should I replace this?