If the nokia 2710 failed and can't establish bluetooth connection to the other device this sometimes caused by a flash firmware problem. Updating or restoring the device flash firmware will might possibly fix the problem.
In some cases bluetooth failure is caused by a faulty hardware components, and this can be shown by this solution below.
Nokia 2710 Navigation Bluetooth Connection Failure Solution
In Nokia 2710 the bluetooth chip is mounted located near the interface connector and it is being covered by a shielding metal. You may first check the chips supply voltages indicated on the solution above.
the the highlighted capacitors is were the RF clock signal that feeds to the bluetooth chip. For advance troubleshooter they start to check the frequency data on that spots before trying to rework or replace the bluetooth module chip.
If the supply voltages and the RF clock capacitors were both okay, you may then proceed to rework and replace the bluetooth module chip. A faulty bluetooth chip will also result to FM radio and GPS failure.
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