Скачать или смотреть Tecno Camon 20 Power On Off & Volume Keys Problem Solution | Hardware Jumper Ways Fix

In this video, you will learn a complete step by step hardware repair guide for Tecno Camon 20 power button and volume keys problem solution. This video covers power key not working, phone not switching on, volume up down not responding, stuck power button, automatic restart, and keypad line issues. Full power and volume key section testing, key line continuity, diode mode readings, voltage measurement, and hardware jumper ways fix are explained clearly. This guide is very helpful for mobile technicians and beginners searching for accurate Tecno Camon 20 key hardware repair solution.

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🛠️ 30 STEP BY STEP HARDWARE REPAIR GUIDE

Power off Tecno Camon 20

Remove SIM tray

Open back cover carefully

Disconnect battery connector

Remove motherboard shield

Inspect power key flex

Inspect volume key flex

Clean key connector pins

Check key button physically

Test key lines in diode mode

Check short to ground

Measure key voltage

Inspect filters near key lines

Test continuity of power key line

Test continuity of volume key line

Reflow key connector

Replace damaged key flex

Apply jumper on broken key line

Repair PCB track if damaged

Clean flux residue

Connect battery temporarily

Power on phone

Test power button response

Test volume up key

Test volume down key

Observe key sensitivity

Reinstall motherboard shield

Secure battery connector

Close back cover properly

Final power and volume key test

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