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i replaced u7000 again, cause g3h was 4.4v, it died, so now it powers on again resistance measured on the u7000 legs 27/28 22ohm, 17/18 3.8ohm, so the tracks are good from the resistors osx doesnt see the battery at all, and if i remove the charger the screen goes black and never comes back...

same with new battery

not water damaged customer says he replaced the battery and saw some sparking it turns on on charger, there is green light, but very slow -when battery connected wont change to orange light -only on the battery wont power on -when powered on with battery and charger, then i remove the charger...

we have a large ultrasonic cleaner, 25 liter, it fits all macbook motherboards, but its too deep, which means it takes at least 15liter of liquid, which takes like a hour to heat up to 60C there was a suggestion that we just fill it with alcohol, and dont use the heater in the cleaner and just...

ok, so the .dmg i downloaded is compressed, and i have to double click open it, then "install" it, but that is not actualy installing it, which will uncompress it to a .app file, now i can make usb iunstaller

for some reason i had to recreate all my usb installer, 10.13 is from app store, so when it downloads that is an .app , but when i go to ur link above i can download 10.11 but that is .dmg, how can i make a usb installer from that? i went in disk utility and tried to restore but it complains...

recently i tried to format and install osx 10.13 to the newer macbook with type c connectors, and i can boot up from usb, format the ssd, and when i want to install osx it says that this installer is damaged, then i had another 10.13 stick, the usb-A one, tried with type c adapter, same thing...

Laptop fixed Q7950 was faulty. Thanks 2informaticos for help.

I getting 0.02V on ALL_SYS_PWRGD This what I getting on Q7950 VMON_Q2_BASE - 1.06v VMON_Q3_BASE - 1.5v VMON_Q4_BASE - 1.05v S0PGD_C - 3.27v

Hi, I have another MacBook Pro 13 2012 with v-core no power. I have replaced U7400 with no luck measure on TONA 12.25v and TONB 12.06V I measure this voltage on another working board and its below 1v. I have tried also swap bios just to check no luck SMC reflowed nothing. Board is not...

All working now fine. Thanks for help.

okay thanks

How can I contact you? will you help me with it ? Can't send Private message to you from some reason.

sorry didn't know is not allowed here.

Hi, I have MacBook Air 11 A1370 820-3024-B with locked EFI main board number 820-3024-B can someone remove this EFI lock for me please. I tried edit bios file remove $svs piece and FF this whole field as I found in some instructions online but from some reason after this laptop want power back...

after cleaning the ME region, and even program a new bios, still was freezing, everything disconnected, even booting from usb, same, but one thing was still on the board, the wifi card, and guess what that was causiing the freezing, the cpu get really hot during the boot process and it remained...

no water damage, when it came in it would try to boot but the lines unde the apple logo stuck at 10%, i read here that the typical issue is the cpu voltage control chips, so i ordered them from mouser FDMF6708N, so they are brand new, all 3 replaced, checked them 5 times, the soldering is good...

Thanks for response. I do tried reflow and replace U8900 prior CPU replacement, voltages bellow. I didn't reflow or replace it after CPU replacement. JohnB8812 those CPU are that sensitive for temperature? Sorry for silly questions but never replace those Intel CPU's before so don't have too...

Hi everyone, I have this MacBook Pro for repair board 820-3332-A Got it with 3 beeps issue have tired reflow ram replace PCH no luck I decide to replace CPU because it was getting crazy warm. After replacement (I remove same CPU from Donner board) with was liquid damage but I was getting a...

With all measurements and checking looks like CPU/PCH is gone... Have you ever try to replace it ? I have replace many GPU PCH and older CPU successfully but never try to replace any of this newest Intel. They are expensive so I wondering is it even worth to trying. Thanks