Скачать или смотреть Poco C50 LCD Display Light Problem Solution | Backlight Ways | No Light / Dim Screen Fix

If your Poco C50 LCD display has no light, dim light, or screen turns on but stays dark, this video explains the complete backlight hardware repair solution.

This guide includes:

Poco C50 backlight ways diagram

LED line testing and continuity check

Backlight coil, diode, and filter testing

PMIC backlight output voltage check

Jumper solutions for broken display light tracks

Fixing no light after screen replacement or water damage

Perfect for mobile repair technicians and hardware engineers.

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✅ 30 STEP-BY-STEP REPAIR STEPS

Power off Poco C50.

Remove back cover and battery.

Unscrew frame and shields.

Remove motherboard carefully.

Inspect LCD connector pins.

Clean connector with alcohol.

Check backlight lines for continuity.

Test BL+ and BL− voltage.

Check backlight coil.

Replace faulty coil if needed.

Test backlight diode.

Replace burnt diode.

Check backlight filters.

Replace damaged filters.

Test backlight fuse.

Apply jumper if fuse broken.

Inspect PMIC backlight output.

Reflow PMIC if output missing.

Replace PMIC if short detected.

Install a new LCD to test light.

Check light intensity and brightness.

Repair broken tracks with jumper.

Ensure stable backlight voltage.

Reassemble motherboard.

Reconnect battery.

Power on and test display light.

Check for flicker or dim light.

Verify brightness adjustment works.

Close back cover.

Perform final device test.

✅ HASHTAGS

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