Скачать или смотреть Xiaomi BlackShark 1 LCD Light Problem Solution | Step by Step Repair Guide US UK Europe

In this detailed video, we explain how to fix the Xiaomi BlackShark 1 LCD light problem. If your display shows graphics but no backlight, this guide will help you troubleshoot the LCD light IC, filters, coils, and jumpers. Learn professional voltage testing and PMIC output repair methods for technicians working across the US, UK, and Europe. Perfect for resolving dark screen or low light display issues on the BlackShark 1 step-by-step.

⚙️ 30 Step-by-Step Repair Instructions:

Power off the Xiaomi BlackShark 1 completely.

Remove the back cover using a plastic pry tool.

Disconnect the battery connector safely.

Detach the LCD display connector from the board.

Visually inspect the LCD connector area for damage.

Check all backlight filter components for burns.

Measure voltage at the display light coil (should be around 25V).

Test continuity from PMIC to the coil line.

Replace burnt coil or damaged diode if necessary.

Inspect the backlight IC located near the display connector.

Check IC input voltage (should be 3.7–4.2V).

Measure backlight enable line voltage (should be 1.8V).

If voltage missing, trace jumper from PMIC to enable pin.

Clean the area around the LCD connector with IPA solution.

Reball or replace the backlight IC if found faulty.

Recheck continuity after replacing the IC.

Connect the battery and short press power to test light.

If still dark, test the LCD panel with a new one.

Confirm screen light with multimeter diode mode.

Ensure GND and VLED lines are not shorted.

Reheat backlight section gently (350°C).

Clean board with brush and flux after heating.

Reconnect all flex cables.

Assemble device partially for testing.

Power on the phone and check display brightness.

Adjust screen light in settings to verify.

Secure board and connectors with screws.

Assemble the device completely.

Run final test for full brightness consistency.

Your Xiaomi BlackShark 1 LCD light issue is fixed!

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