2017 Macbook pro A1701 820-00928-a not booting

calbuh

New member
Hi.
I have a problem with 820-00928-a . This mac is not booting . Some times it says that something is wrong and needs to reboot and keep rebooting. Some times the apple logo appear and remain stuck at spinning circle. If i enter in apple diag. and do a ssd diag. it keep searching the ssd but it see nothing. The motherboard is clean and no corrosion present. The beauties is that the ssd is soldered on motherboard. Can you give some idea where to start?
Thx.
 

calbuh

New member
J9600 seems to be ok, i eaven clean the conacts with contact cleaner.
When i try to boot with install usb stik i ghet the same error "
that something is wrong and needs to reboot
".
if i boot from a live stik it starts loading and it gets stuck at 2 minutes remaining.
If i remove j9600 an boot from live stik it reach to network selection and after i connect to internet it says that needs un update that cannot install and it remains here.
 

2informaticos

Administrator
Staff member
Try to boot preinstalled USB OSX, with J9500 removed.
Also try to start in safe mode.
If your machine is touchbar model, check corresponding thread about critical update error on this case.
 
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