Here's a solution for Nokia 6730c power On and OFF and END button key that is not working or unresponsive when trying to turn the device ON or powering it up.
If the device shows charging indication when the battery or car charger is being inserted or plug-in but it doesn't TURNs ON., this solution shows some hints on how to repair or fix this problem.
This solution below shows the connection line paths of the POWER/END key of the device. The power key is also associated or being assembled on the keypad flex matrix. You may first try to check and ensure that the keypad flex assembly is not damaged and also the power/end key contact pads is cleaned.
If seems that the keypad flex matrix and the power button key contact pads is okay, you may then try to trace and check the power key connection line paths down to the keypad pin connector and to a certain components that is where it is being connected. Refer to this solution below to locate such components.
There is a 10K resistor and an ESD protection chip mounted at the side of the 6730c PCB board, just near to the keypad pin connector. You may first check and try to replace this components. You may also check the 3.7 volts battery voltage (VBAT) on the other terminal side of the 10k resistor. This voltage is connected to the phones battery positive terminal.
If the device shows charging indication when the battery or car charger is being inserted or plug-in but it doesn't TURNs ON., this solution shows some hints on how to repair or fix this problem.
This solution below shows the connection line paths of the POWER/END key of the device. The power key is also associated or being assembled on the keypad flex matrix. You may first try to check and ensure that the keypad flex assembly is not damaged and also the power/end key contact pads is cleaned.
If seems that the keypad flex matrix and the power button key contact pads is okay, you may then try to trace and check the power key connection line paths down to the keypad pin connector and to a certain components that is where it is being connected. Refer to this solution below to locate such components.
Nokia 6730c Shows Charging But Doesn't Turns or Power ON Solution
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