After restore from iOS 12.5.5 to iOS 14 iPhone 7 (GSM) got error 7 with code 130C.FFFF, what's the issue? It's seems that's issue is in iPhone itself. When restoring thru 3uTools, it's says "Can't update Stockholm". (btw, Stockholm is a codename for Apple Pay) Could this be modem? Thanks!
crwdns2934109:0crwdne2934109:0
crwdns2934065:0crwdne2934065:0: 50.9crwdns2936485:0crwdne2936485:0
8
17
101
I have seen this error come up a few times and replacing the homer IC “U3601” fixes the problem. If you don’t have a homer IC you could try re-balling the one that’s on there. I usually get these repairs after someone has tried doing an audio IC or Baseband PMU repair. I guess they have applied to much heat to the board causing the homer IC’s solder balls to become oxidised, cracked or nudged.
crwdns2934105:0crwdne2934105:0
Updating stockholm
crwdns2934105:0crwdne2934105:0
U3601 being reason for this error was confirmed today. I replaced Audio IC - following update ended at 69% "Updating Stockholm" with error "Failed to restore device(-1)". I searched online for solution and found this. I reballed U3601, soldered it back and update proceeded successfully.
crwdns2934105:0crwdne2934105:0
crwdns2936751:024crwdne2936751:0 2
crwdns2936753:07crwdne2936753:0 7
crwdns2936753:030crwdne2936753:0 22
crwdns2942667:0crwdne2942667:0 1,380
