Nokia 3310 On Off Key Not Working Solution Power Key Ways, Switch Lines, Full Hardware Repair Guide
This video explains the full hardware method to fix Nokia 3310 On/Off Key Not Working Problem. Learn how to check the power switch, key lines, tracks, filters, and button section. If your Nokia 3310 is not turning on from the button, power key hard, or no response, this complete hardware repair guide will help you fix it step by step.
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✅ 30-Step Repair Guide
Switch off Nokia 3310 (if possible).
Remove back cover.
Take out the battery.
Remove front keypad panel.
Open phone casing.
Remove PCB board.
Identify the On/Off key/switch location.
Inspect switch under a microscope.
Clean switch area with PCB cleaner.
Press switch manually using tweezers to test response.
If no click feel, replace switch.
Check the two power key pads on PCB.
Test continuity between switch pads.
Check lines from switch to power IC.
Repair any broken pad using a jumper.
Trace the On/Off key way to the PMIC.
Replace damaged series resistor.
Clean corrosion around key section.
Re-solder loose power switch.
Test for short in power key line.
Remove any shorted capacitor.
Jumper broken track to PMIC input.
Install new On/Off switch if needed.
Reassemble PCB.
Insert battery and test power key.
Check for normal boot-up.
Assemble keypad panel.
Tighten casing screws.
Final functional testing.
Close phone fully after successful repair.
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