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got this macbook air as an npo no green/orange light
the machine was in other repair place, they took out the ssd and copied the date, gave machine back as repair not possible.
my client asked me to chek first if this ist the original board from his machine.
so i desoldered the bios chip read...
Problem ist solved! thanks to @EsteTron, I found the same problem
https://boards.rossmanngroup.com/threads/imac-27-late-2013-820-3481.59938/
after replacing the burned Thunderbolt Host working great again, thanks all for help
I had the same problem, same solution, I can confirm that it works (I toke also from 820-3437), the burning point was in the same place! Great job @EsteTron, thanks for that post!
I got an A1398 2.8GhZ, 16GB, mid 2014, OSX 10.15.7 with bad Akku
After replacing it came back because it shows by clicking on battery symbol "service needed..."
I replaced the accu checked, no service symbol and sent back
Now i got again with the same problem (1 day later)
I dont had password...
ok.
So, if I replace the Mainboard with another one and the touch Id button with the touch id button from the donar mainboard that will work.
the question is, if i clone the ssd from the old mainboard to the new and the client has saved touch id informations from fingers, does her can use all...
Need some help please.
Had to replace the topcase and unfortunately the cable broke off. I tryed to solder that under the microscope but the seems to be a pain in the a...
has anyone of you an idea what could i do here ?
thanks all
no idea. my client want to have a 1TB ssd in original place and extendet 1TB in DVD place.
I replaced now the 1TB in original place with a 2TB and build in the dvd player back.
problem for client solved but that was strange. thanks for help.
back again with bad news
i assembled today all together, came the client, machine starting up and shut down or freez. after 3-4 times tryed i have now the same problem like in the beginning, fan spins, cpu vcore is good, it pulls only until 0.5A if good it should until 0.6 I think. seems like...
i have a a1286 2011, the mainboard is modified with the Tiresias from Harald
the osx is a catalina patched from dosdude
the 2. ssd is a 1TB, external via usb no problem, can clean it or copie files on it.
if is in the dvd place i can "see" in disk utilities or in finder the SSD, but it is not...
I just still replaced the display with a known good working one and the flex cable and the trackpad and the topcase but same problem
here is still a second video with the problem from my client. he had the problem as well during the acount was activ
www.lrzt.de/flicker2.mov
this machine cam in with broken display and problems during using keyboard. no signs for liquid spill.
I replaced the display and the topcase. working fine but client send back now because its flickering during boot up in to the user account pressing a key.
i thought a cable or topcase problem...
yes man that worked. ! thanks a lot.
the problem was definitly the bios. but with your bios i had the same result. it was a little hard to me to solder the bios chip good with the board. so when i had the same result with your now known good bios i tryed some times to solder that good and now...