Samsung TV & Audio QN55LS03BAFXZA 55" Class The Frame QLED 4K Smart TV VERTICAL LINES Error Fix: Vertical Lines on Screen

Error code VERTICAL LINES on the Samsung TV & Audio QN55LS03BAFXZA 55" Class The Frame QLED 4K Smart TV means: Vertical Lines on Screen. Persistent vertical lines (single or multiple colored lines top-to-bottom) appear on the display. On LED/QLED/Crystal UHD TVs, usually a T-CON board failure or damaged COF (Chip-on-Film) bond connection. Pressing on the bezel near the lines may temporarily affect them — confirms a COF bond issue. T-CON replacement is cost-effective ($30-100). On OLED TVs, vertical lines indicate a failed source driver in the panel. Run a Picture Test (Settings → Support → Device Care → Self Diagnosis → Picture Test) to confirm hardware origin.

The most successful fix is "Replace the T-CON Board or Source Driver Panel Module" (hard difficulty, ~90 minutes). Estimated DIY cost: $30-$100. HomeMD has 2 community-ranked fixes for this error.

This error is rated high severity. You should address it promptly — continued use could cause damage or safety concerns.

Yes — the top-ranked community fix ("Replace the T-CON Board or Source Driver Panel Module") is rated hard difficulty and takes about 90 minutes. Tools needed: T20 Torx screwdriver, Plastic pry tools, Anti-static wrist strap.

DIY cost: $30-$100. Professional repair typically costs $150-$300. Many homeowners save money by trying the top-ranked community fix first.

The Samsung TV & Audio QN55LS03BAFXZA 55" Class The Frame QLED 4K Smart TV has 8 other known error codes, including: 2 BLINKS (Power Supply Board Fault), 5 BLINKS (LED Backlight / Driver Protection Shutdown), 6 BLINKS (Main Board / T-CON Communication Failure), ANYNET FAIL (Anynet+ (HDMI-CEC) Not Working), APP CRASH (App Freezes or Crashes), and 3 more.

Error code VERTICAL LINES also appears on 4 other Samsung TV & Audio models: QN65Q80CAFXZA 65" Class Q80C QLED 4K Smart TV, QN65QN90CAFXZA 65" Class QN90C Neo QLED 4K Smart TV, QN65S90CAFXZA 65" Class S90C OLED 4K Smart TV, UN55CU8000FXZA 55" Class CU8000 Crystal UHD 4K Smart TV. The fix may vary by model, so check each model's specific page for tailored repair steps.