iPhone 14 Pro No Display Light Jumper Ways & Graphics Problem Solution LCD Backlight Fix

Описание: In this video, we explain the iPhone 14 Pro no display light jumper ways and graphics problem solution with a complete step-by-step hardware repair guide. If your iPhone 14 Pro shows no backlight, dim screen, flickering light, white display, or distorted graphics, this tutorial will help. We cover backlight IC, filters, jumpers, PMIC lines, and LCD connector testing. Perfect for mobile repair technicians and students learning advanced iPhone hardware repair.

📌 Step-by-Step Instructions (30 Steps)

Power off iPhone 14 Pro completely.

Remove SIM tray and back panel carefully.

Use heating machine to separate back glass.

Disconnect the battery flex for safety.

Remove shield screws and disconnect display flex.

Inspect display connector under microscope.

Clean connector pins with IPA solution.

Test connector lines with multimeter.

Check anode and cathode lines for backlight.

Inspect backlight filters and coils.

Replace faulty or burnt filter.

Test backlight diode for continuity.

Replace diode if shorted.

Measure VCC and GND at LCD connector.

Check 1.8V, 2.8V, and 5V display power lines.

Trace missing voltage from PMIC.

Inspect backlight IC on motherboard.

Reflow IC if loose connection found.

Replace IC if confirmed faulty.

Check graphics IC/video IC near display circuit.

Reball or replace graphics IC if distorted display persists.

Inspect all backlight ways with circuit diagram.

Jumper missing or broken ways where required.

Test with a known good display.

Verify screen brightness and clarity.

Check for flickering or color distortion.

Run phone in high brightness to test stability.

Reassemble device after successful repair.

Connect battery and close back glass properly.

Final test: Bright display + clear graphics restored.

📌 Hashtags

#iPhone14Pro #iPhone14ProDisplayProblem #BacklightWays #iPhone14ProGraphicsFix #MobileRepair #AppleRepair #iPhone14ProSolution #LCDLightProblem #iPhoneRepairGuide #TechRepair