I can achieve normal transmission when while media player is playing something I press and hold the down arrow on the hardware keyboard. The active application may be different. The calculator for example.
If no key is pressed there is no carrier frequency. Noise only from the receiver.
Did a little testing to see what happens when the key is pressed.
Nothing releted chaged in the /sys/class/i2c-adapter/ tree when the key was pressed and released later.
Verified by dumping file's content this way:
root@Nokia-N900-42-11:/sys/class/i2c-adapter# for i in `seq 1 1000`; do find . -type f | while read f; do echo -n "$f: "; cat $f 2>/dev/null; done > ~/radio-test/res$i; echo $i; done
Problem fixed.
Disassembling a little N900 I got access to the FM Transmitter antenna. The GND pin was not bended enough to make firm connection to the PCB.
I bended it just a little more as shown on the attached photo. That resolved my issue.
Be smart. Send your device to Nokia for repair if you have the same problem
Ha, just tested mine, (has worked once, long time ago), and sure enough, if I press down around the arrow keys, it works wonderfully! Don't have to press the buttons all the way, just a little.
I too got mine from Amazon USA, around Feb or March.
Anybody know how long Nokia's warrant turn around is?
has anyone found a solution, or it is a hardware problem and i have to take it back to service?