SOLVED Help? Why are Vertical Blue lines stuck in boot screen
- Thread starter Jbmr13
- Start date
Cory Cooper
Moderator
- Joined
- May 19, 2004
- Messages
- 11,098
- Reaction score
- 500
Hello and welcome.
Usually that is an issue with the graphics card or LCD display itself. It will probably require a hardware repair.
-Which exact model iMac?
-Which version of OS X/macOS?
C
Usually that is an issue with the graphics card or LCD display itself. It will probably require a hardware repair.
-Which exact model iMac?
-Which version of OS X/macOS?
C
Cory Cooper
Moderator
- Joined
- May 19, 2004
- Messages
- 11,098
- Reaction score
- 500
Yes, thanks.
That looks to be an iMac (Retina 5K, 27-inch, Late 2015) running macOS High Sierra 10.13.6.
If you happened to purchase it after April 2017 and added AppleCare, it would be covered under AppleCare warranty. If not, it could be a paid repair for several hundred dollars and up, depending on the actual issue and where you take it.
If you happen to have an external display and adapter, you could connect it to see if the issue is present there as well. If so, it is the graphics/logic board. If not, it is the display panel itself.
If it doesn't get past the Apple logo screen as you mentioned, I would lean toward a logic board issue. The only other things you can do to troubleshoot, would be to run Apple Diagnostics: How to use Apple Diagnostics on your Mac. That may reveal the issue, if it is able to complete.
C
That looks to be an iMac (Retina 5K, 27-inch, Late 2015) running macOS High Sierra 10.13.6.
If you happened to purchase it after April 2017 and added AppleCare, it would be covered under AppleCare warranty. If not, it could be a paid repair for several hundred dollars and up, depending on the actual issue and where you take it.
If you happen to have an external display and adapter, you could connect it to see if the issue is present there as well. If so, it is the graphics/logic board. If not, it is the display panel itself.
If it doesn't get past the Apple logo screen as you mentioned, I would lean toward a logic board issue. The only other things you can do to troubleshoot, would be to run Apple Diagnostics: How to use Apple Diagnostics on your Mac. That may reveal the issue, if it is able to complete.
C
- Joined
- Mar 11, 2022
- Messages
- 1
- Reaction score
- 0
Halo I have the same problem about my iMac too I dunno what OS it runs because I'm using BootCamp but could you help me fix it without any cost of money like any repairment from the Apple repair some sort of like NVRAM resetting, and it stuck on Booting screen cant even access the Network OS installment from hard factory reset, Thank you hihi