LG TV & Audio 55UQ7570PUJ 55" Class UQ75 Series 4K UHD Smart TV BLINK 2X Error Fix: Power Supply Overcurrent / Short

Error code BLINK 2X on the LG TV & Audio 55UQ7570PUJ 55" Class UQ75 Series 4K UHD Smart TV means: Power Supply Overcurrent / Short. Standby LED blinks 2 times in repeating pattern — TV will not turn on. Indicates overcurrent on power supply board, shorted component on main board, or failed backlight LED strip creating a short. Unplug TV for 60 seconds. If blinking persists, power supply board likely has failed capacitor or MOSFET. Professional repair required.

The most successful fix is "Test and Replace Power Supply Board Components" (hard difficulty, ~90 minutes). Estimated DIY cost: $30-$60. HomeMD has 2 community-ranked fixes for this error.

This error is rated critical severity. It is generally not urgent and can often be resolved with a simple DIY fix.

Yes — the top-ranked community fix ("Test and Replace Power Supply Board Components") is rated hard difficulty and takes about 90 minutes. Tools needed: T20 Torx screwdriver, Multimeter, Soldering iron, Anti-static wrist strap.

DIY cost: $30-$60. Professional repair typically costs $250-$400. Many homeowners save money by trying the top-ranked community fix first.

The LG TV & Audio 55UQ7570PUJ 55" Class UQ75 Series 4K UHD Smart TV has 8 other known error codes, including: APP CRASH (App Freezes or Crashes), AUDIO SYNC (Audio Out of Sync with Video), BACKLIGHT BLEED (Backlight Bleeding / Clouding), BACKLIGHT FAILURE (LED Backlight Strip Failure — No Picture), BACKLIGHT STRIP FAIL (LED Backlight Strip Physical Failure), and 3 more.

Error code BLINK 2X also appears on 6 other LG TV & Audio models: 75NANO75UQA 75" Class NanoCell 75 Series 4K Smart TV, 86QNED80URA 86" Class QNED80 4K QNED MiniLED Smart TV, OLED55B3PUA 55" Class B3 4K OLED Smart TV, OLED65C3PUA 65" Class C3 4K OLED evo Smart TV, OLED65C4PUA 65" Class C4 4K OLED evo Smart TV, OLED65G3PUA 65" Class G3 4K OLED evo Gallery Edition Smart TV. The fix may vary by model, so check each model's specific page for tailored repair steps.