Here's the Nokia 6600 slide Solution for Numeric Keypad problem or if the keypads stop responding. This solution provides some hints on how to diagnose the keypad interface and take make it work again.
Refer to the repair solution below, and locate the highlighted components, then follow some step by step procedures we provide.
Repair hints to fix Nokia 6600 slide keypads not working problem:
1. Ensure that the silicone rubber keypads were okay, some users have replaced it with low quality spare that they buyed anywhere.
2. Check the device firmware, reset or flash restore it to any latest firmware version available if necessary.
3. Check the keypad membrane, clean it if humidity build ups found, this may happen if the device suffered water or sweat residues.
4. Check and trace all the connection line paths of the keypad interface on the PCB board.
5. Check and replace the corresponding resistors where that particular keys are connected.
6. Check also the grounding connections.
7. The keypad keys are all connected and controlled by the Processor IC. You may need to rework or replace it if you get into this steps level.
Refer to the repair solution below, and locate the highlighted components, then follow some step by step procedures we provide.
Nokia 6600 slide mobile phone keypad circuit connection
1. Ensure that the silicone rubber keypads were okay, some users have replaced it with low quality spare that they buyed anywhere.
2. Check the device firmware, reset or flash restore it to any latest firmware version available if necessary.
3. Check the keypad membrane, clean it if humidity build ups found, this may happen if the device suffered water or sweat residues.
4. Check and trace all the connection line paths of the keypad interface on the PCB board.
5. Check and replace the corresponding resistors where that particular keys are connected.
6. Check also the grounding connections.
7. The keypad keys are all connected and controlled by the Processor IC. You may need to rework or replace it if you get into this steps level.
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