Скачать или смотреть Tecno Spark 4 LCD Display Graphics Problem Solution | No Display | Lines | White Screen Fix

Tecno Spark 4 LCD display graphics problem occurs due to damaged display lines, faulty display IC, missing LCD voltage, short capacitors, connector issues, or broken motherboard tracks. In this video, you will learn complete hardware troubleshooting including diode mode testing, LCD voltage checking, jumper ways repair, and IC section inspection. This professional repairing guide is prepared with reference to Estech Schematics and Hardware Solutions and Borneo Schematics and Hardware Solutions for accurate motherboard-level repair.

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✅ 30 STEP-BY-STEP REPAIR STEPS

Power off mobile

Remove SIM tray

Open back cover

Disconnect battery

Remove metal shields

Disconnect LCD connector

Clean connector pins

Test LCD flex

Check display voltages

Test diode values

Inspect display lines

Find short components

Clean corrosion areas

Check LCD power coil

Check filter capacitors

Repair damaged tracks

Apply jumper wires

Re-solder connector joints

Test display IC section

Reflow display IC

Replace IC if faulty

Reconnect LCD

Connect battery

Power on phone

Check graphics output

Test full screen

Observe color stability

Reassemble phone

Final testing

Repair completed

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