Here's some tips on how to fix the Nokia 6710 navigator with a not working power On-OFF/End key problem. IF the device shows charging indication when the battery charger is plug-in but however it doesn't TURNS ON when the power key is being pressed. This solution below might possibly help fix the problem.
If encountered and trying to fix this problem, you may first check the upper keypad assembly, the outer core layer of the power keypad is connected to ground while the inner or center core is the positive switching line. Then the flex ribbon cable assembly for possible damaged, a damaged ribbon cable will cause the device unable to turns ON if the power key connection line paths associated with is being cut-off.
If the above process is already been done or already tried installing a new flex ribbon cable replacement spare but still the phone won't power ON, refer to the solution below and check the connection line paths of the power key from the flex pin connector down to where it is being connected.
There is a 10kilo ohms resistor is being connected to the power key line paths, the other side of its terminal is connected to the battery supply voltage which is 3.7 volts. Other than that, the power key key switching voltage is feeds from the power IC. You may need to check to rework the power IC for further or deeper troubleshooting.
If encountered and trying to fix this problem, you may first check the upper keypad assembly, the outer core layer of the power keypad is connected to ground while the inner or center core is the positive switching line. Then the flex ribbon cable assembly for possible damaged, a damaged ribbon cable will cause the device unable to turns ON if the power key connection line paths associated with is being cut-off.
If the above process is already been done or already tried installing a new flex ribbon cable replacement spare but still the phone won't power ON, refer to the solution below and check the connection line paths of the power key from the flex pin connector down to where it is being connected.
Nokia 6710 Power On-Off key Jumper Ways
There is a 10kilo ohms resistor is being connected to the power key line paths, the other side of its terminal is connected to the battery supply voltage which is 3.7 volts. Other than that, the power key key switching voltage is feeds from the power IC. You may need to check to rework the power IC for further or deeper troubleshooting.
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