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Posts: 111 | Thanked: 50 times | Joined on May 2015
#1
After I have installed blessn900 (camera application) and of course automatically fcam drivers, my radio application stopped working. When I am running this application "null" appears on the screen and I am not able to receive any station signal.
My FM Transmitter also don't work.
Does anybody have an idea how to solve this problem?
 

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#2
are you sure it is a software issue? Usually the FM chip gets loose.
Does BT work?
 

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Posts: 4,117 | Thanked: 8,901 times | Joined on Aug 2010 @ Ruhrgebiet, Germany
#3
Try a full power cycle:
shut down N900
wait until screen is fully dark
pull battery
wait a few seconds (push the power button for 3s)
assemble and power up
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#4
FM rx requires bluetooth enabled, they are on the same chip.
I think it also requires headphones plugged in to enable and act as an antenna(I think the FM broadcast band pin & trace from the Bluetooth chip connects to the headphone ground ring) but I think that can be bypassed though without an antenna you need a strong radio station to get any signal.
 

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#5
Originally Posted by biketool View Post
FM rx requires bluetooth enabled, they are on the same chip.
Objection, your honour!

They are on the same chip, that much is true. But FM does not require Bluetooth enabled. I had BT disabled for the first 5 years of using my N900 as I simply had no use for it (nothing to pair it with), so there was no point wasting the power. But I made an excessive use of FM, both RX and TX.
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