For $29/mo, we provide access to advanced level technicians who will answer your questions on any Macbook board related matter to the best of their knowledge promptly & walk you through how to solve your problem so you can deliver a working board to your customer.
@2informaticos you are a genius!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
after again target mode the disk is apearing, saved the data and yipeeeeeeeeeeeeeeeee! thanks alot for this hint. that is sooo great. VIVA ESPANIA ! :)
case is closed.
yes I had last week a good device only for some softwareupdates here. i replaced the mainboard but there it is cycling as well.
I load up a video of the cycling: https://lrzt.de/video/cycling%20video.mp4
I just think is it worth to solder out the NANDS for testing with a P13 if they are...
before i wrote her , 2 weeks ago i got a working a2141 i replaced the board with this one and got a sign battery empty, but only one time all the other trys were the same like this and before replacement. i checked the good board in the case of this board there was all ok.
get DFu but during revive step 4 half way it turns on, only backlight, then I get this
and it stays in this mode (on only backlight, dont turning off) after disconecting thunderbolt cable it turns off. after that it dont turns on for 34 seconds, it do nothing. get back in DFU mode this time...
connecting a real known DFU working thunderbolt cable in the left USB port near trackpad and connecting battery and shorten SWK003 by plug in power shoul do this yes?
thanks for your replay.
still restart (all 34seconds) by pressing T key or not
I will try to get it in DFU mode, is it needfull to connect the trackpad?
it turns on like described and from turning on backlight after 34 seconds it turns off and all starts from beginning, that is cycling.
I checked the NAND power but this is without interuption steady 2.52V
I found out still another intresting thing. by connecting the touchpad the display comes...
got this device with a strange problem. connecting batterie, open lid, connecting power .
20V, amper is rising up until about 2.8A
then it switches to 19.8V like always, display backlight is coming up and that is all !
i checked the whole board no water damage to see or any other strange...
Hi
got this device, not working, found a short in the mainboard near usb. replaced this all working fine.
Checked everything, all good. toke the display off and install the glue stripes. put display back without gluing for last test and... no backlight!
checked connector get 69V and with...
hi got this device. seems to work all ok.
by pressing power button holding down the alt key left or right it starts in osx dont possible to select a start-drive.
external keyboard it is possible so i realized in the screen to select start drive that keyboard and trackpad dont work.
now the...
Hello,
I installed new Big Sur on this machine to get the newest EFI then I replaced the RAM to 16GB and replaced the Timings in the EFI
Now I installed on custom SSD Big Sur and the EFI is rewritten by installation. Of course the machine dont work now with the wrong RAM timings.
My question...