Recent content by Outofwhack

When I measure all the test pads around U8100 compared to a good board there are missing voltages for PVDDQ1_S1 PVDDD2H1_S2SW The rest are correct peak voltages but all are chopped (see photo) 3.8volt supply is not chopped. CLVR_RESET_L is chopped too 1.3v peak and chopped at same rate down to...

Dead MacBook with customer saying it was working but wasnt charging and no light on magsafe. No evidence of liquid damage. 5volts drawing 0.9amps, PPBUS 6.8volts with spot on U7700 reaching 70 centigrade. Fuses removed and back to 12.3v but PP3V8_AON was reaching 3.0v and had impedance of...

I paid for it. In fact I had to pay for Mac+Windoze because Mac only wasnt available. Was not succesful.

My customer has 20 years of photos on an old A1278 Macbook but she has long forgotten her password. When I try and reset the password the macbook presents me a screen with Serial Number. xxxxxxxxxx and Record number xxxxxxxxxx and says call Applecare but when I ask the owner to call them she...

My customer has 20 years of photos on an old A1278 Macbook but she has long forgotten her password. When I try and reset the password the macbook presents me a screen with Serial Number. xxxxxxxxxx and Record number xxxxxxxxxx and says call Applecare but when I ask the owner to call them she...

Macbook dead. PPDCIN_AON 5.1v PPBUS_AON 6.7v Found corrosion underneath sticker on U5700 (replaced) PP3V8_AON was almost shorted to ground at 3ohms. Removed 3 (phase) inductors and found 3ohm short was not regulator side. Injected voltage on system side increasing to 2volts and saw U7700...

SOC rom erase and DFU revive did result in screen coming up and showing 80% completed bar but configurator said "The system cannot be restored on this device" AMRestoreErrorDomain -1 sys 0x3F sub 0xFFF code 0x3FFF I tried a new trackpad, no change. Logic board now comes in configurator as...

Could you name some that do. I'm lucky to get 1 in 20 revives working over wifi

So should a UGREEN adapter have worked in Internet Recovery? As I mentioned it didn't on a working A1706 - does it need to be an Apple Thunderbolt to Ethernet adapter?

There is no network connection and Im not seeing any flashing lights on my new UGREEN ethernet adapter when booting into internet recovery (Option Command R) on this faulty A2179. It works fine (lights on adapter flash and it connects to the network) on a working A1706 when fully booted and on...

Command R now allows attempt to load recovery software from Apple. Does not attempt from local disk for some reason. However only 5th attempt completed without 2005F error but then said could not find host and went back to beginning. Does appearance of apple logo signify NAND being read?

Yes, trying revive. Would not complete. Tried restore. Would not complete. Timeout waiting on DFU state. Now get logo when starting holding Command R. Logo 30seconds followed by 15second black screen, repeat. Capslock toggle working.

No liquid history, no corrosion visible Backlight comes on but no logo CPU gets hot Tried known good screen SSD0 Voltage rails 2.5v, .8v, 0.9v all present. No toggle of caps lock light No external video No USB activity DM on pins J8500 1,3 .36v, .36v

I replaced a second speaker amp at the other end that also appearing warm and I think its now solved.