Скачать или смотреть Samsung A04 Display Light Problem Solution | No Backlight | LCD Light Ways & Jumper Repair

In this video, learn how to fix Samsung A04 Display Light / No Backlight Problem.
We explain LCD light ways, backlight line tracks, display connector repair, PMIC and light coil testing, LED filter ways, and jumper solutions on motherboard level.
This guide is useful for professional mobile hardware technicians.

✅ 30 Different Most Searching Titles (Before Steps)

Samsung A04 Display Light Problem Solution

Samsung A04 No Backlight Repair

Samsung A04 LCD Light Ways

Samsung A04 Backlight Jumper

Samsung A04 Display Connector Ways

Samsung A04 Brightness Not Working

Samsung A04 Screen Dim Problem Fix

Samsung A04 Display Not Turning On

Samsung A04 Backlight IC Ways

Samsung A04 Display Fuse Jumper

Samsung A04 Light Coil Solution

Samsung A04 PMIC Light Section

Samsung A04 LED Backlight Lines

Samsung A04 Display Track Ways

Samsung A04 Display Sub Board Solution

Samsung A04 LCD Connector Repair

Samsung A04 Backlight Not Working

Samsung A04 Motherboard Display Ways

Samsung A04 Display Light Short Repair

Samsung A04 Backlight Voltage Check

Samsung A04 Display On But No Light

Samsung A04 Dark Screen Repair

Samsung A04 Display Panel Power Section

Samsung A04 Screen Dim Hardware Solution

Samsung A04 Backlight LED Ways

Samsung A04 Display Supply Line

Samsung A04 Display Filter Ways

Samsung A04 Display Booster Line Repair

Samsung A04 Display Flash Light Ways

Samsung A04 Complete Display Ways Diagram

🔧 30 Step-by-Step Repair Instructions

Open device and disconnect battery.

Inspect LCD connector for corrosion.

Clean the connector using PCB cleaner.

Re-seat the display connector properly.

Test screen with a new display to confirm.

Check backlight voltage with multimeter.

Trace backlight positive line from connector.

Check light coil continuity.

Replace coil if open or burnt.

Check display fuse near connector.

Replace fuse if no continuity.

Test backlight filter components.

Replace burnt filter components.

Check for short on backlight line.

Remove shorted components if required.

Test PMIC backlight output voltage.

Reflow PMIC output section if no voltage.

Replace PMIC if output is dead.

Inspect motherboard for broken tracks.

Jumper missing backlight line tracks.

Re-test display after jumper.

Assemble phone partially and test power on.

Check brightness setting in display menu.

Confirm auto brightness is off.

Verify battery power is sufficient.

Fully assemble handset after success.

Perform final charging and usage test.

Return phone to customer.

Advise to use original charger to avoid damage.

Job complete. #SamsungA04 #SamsungA04Display #NoBacklight #DisplayLightProblem #HardwareRepair #BacklightWays #LCDRepair #MobileRepair #PhoneRepair