Persistent horizontal lines on an iMac display almost always point to one of three failures. 1) LCD T-CON (timing control) board: lines that appear after warmup but disappear after a cold restart suggest the T-CON is overheating. 2) GPU failure: 2011 iMacs (Radeon HD 6970M / 6790M) had a notorious solder-joint failure causing horizontal banding - Apple's repair program ended years ago but the fix is a GPU reflow or replacement. 3) Display cable: lines that change when you press on the screen edge mean the LVDS ribbon is loose or kinked. To diagnose: connect an external monitor (works on 2011-2014 iMacs via Target Display Mode; later iMacs need a USB-C/HDMI adapter).
If the external is clean, the iMac's logic board and GPU are fine - it's a panel/cable issue. We replace iMac LCDs and reflow GPUs at our Dubai workshop. Bring the iMac in for a free diagnosis.
Quick answer
Solid horizontal lines that won't go away? Here's what's failing inside your iMac. Persistent horizontal lines on an iMac display almost always point to one of three failures.
How Azizi Technologies handles this in Dubai
- Free intake diagnosis at our Dubai Media City or Bur Dubai workshop (or via WhatsApp photos).
- Written AED price quote before any work begins - no surprises, no hidden fees.
- Apple Certified Mac Technician on every Mac job; brand-trained technicians for Windows and Linux.
- 90-day parts-and-labour warranty on every repair.
- Free pickup and delivery across Dubai including DIFC, JLT, Marina, Business Bay, Downtown, Media City, Jumeirah.
- Same-day service on most common jobs walked in before 11:00.
Need help with your Mac or laptop?
Contact Azizi Technologies - Dubai's trusted repair experts since 2007. We respond within 60 minutes during workshop hours with a written AED quote and the next available pickup slot in your Dubai zone.
Frequently asked questions
Solid horizontal lines that won't go away? Here's what's failing inside your iMac.
Persistent horizontal lines on an iMac display almost always point to one of three failures. 1) LCD T-CON (timing control) board: lines that appear after warmup but disappear after a cold restart suggest the T-CON is overheating. 2) GPU failure: 2011 iMacs (Radeon HD 6970M / 6790M) had a notorious solder-joint failure causing horizontal banding - Apple's repair program ended years ago but the fix is a GPU reflow or replacement. 3) Display cable: lines that change when you press on the screen edge mean the LVDS ribbon is loose or kinked. To diagnose: connect an external monitor (works on 2011-2014 iMacs via Target Display Mode; later iMacs need a USB-C/HDMI adapter).
Do you offer imac repair dubai in Dubai?
Yes. Azizi Technologies has been an Apple and IT specialist in Dubai since 2007. For iMac Repair Dubai, we offer same-day workshop service at our Dubai Media City (Concord Tower, Office 45) and Bur Dubai (G 58, IT Center Building) locations, with free pickup across Dubai. Free diagnosis on intake, written quote before any work, and a 90-day parts-and-labour warranty on every job. Call +971 55 753 0104 or WhatsApp for a quote.
What are your workshop hours and locations?
Azizi Technologies operates two walk-in workshops in Dubai. Main: Concord Tower, Office 45, 10th Floor, Dubai Media City (covers DMC, Internet City, JLT, Dubai Marina, Al Sufouh, Jumeirah, Palm Jumeirah, Bluewaters, Al Barsha). Second: G 58, IT Center Building, 21 21A Street, Bur Dubai (covers Bur Dubai, Karama, Deira, Downtown). Hours: Monday to Saturday 09:00 to 21:00 (Friday prayer break 12:00 to 14:00). Closed Sunday. Free pickup across all Dubai districts on jobs over Request a quote.
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