Here's a solution which holds and can be used to fix and repair Nokia
3710 fold that has keypad back light LED failure or problem.
The solution below shows the location of the components on nokia 3710 fold which needs to check and or replace if found damaged or faulty.
The four keypad LED's are connected on series connection, each connection is composed of two LED's.
You may first check each of these Light Emitting Diode first before proceeding.
A battery supply voltage of 3.7volts is needed and flow across the filter coils shown on the solution above.
You may check the line paths and corresponding connected components on the circuit for further troubleshooting.
The solution below shows the location of the components on nokia 3710 fold which needs to check and or replace if found damaged or faulty.
Solution for Nokia 3710 fold No Keypad Backlight LED Problem
The four keypad LED's are connected on series connection, each connection is composed of two LED's.
You may first check each of these Light Emitting Diode first before proceeding.
A battery supply voltage of 3.7volts is needed and flow across the filter coils shown on the solution above.
You may check the line paths and corresponding connected components on the circuit for further troubleshooting.
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