Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

shafiq700999

macrumors newbie
Original poster
Aug 11, 2017
4
0
Hi Friends,

I have 820-00923 need critical software update stuck Logic board issue. i.e 1.88V not present on R4400 & R4490. any one any idea may it is T1 issue or something else.
 

Attachments

  • Screenshot (5).png
    Screenshot (5).png
    646.2 KB · Views: 111
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.