A few months ago I did an interesting discovery about using my cellphone to go on the internet via bluetooth. I had this strange situation before where it just stopped working, and after revisiting all configs it worked again.
What really happens is that my cellphone somehow crashes, after which I power cycle it by removing the batteries. The phone then boots again, but here is the twist: the service channels in the phone are re-allocated and apparently in a random order!
This implies that the RFCOMM channel configured in the /etc/bluetooth/rfcomm.conf file is possible wrong now!
Solution: just browse the services again with sdptool browse, adapt the file and it should work again!
9 comments:
[...] GPRS/3G | Starlight: A few months ago I did an interesting discovery about using my cellphon… http://bit.ly/cJ5B8c Tags: fresh, [...]
[...] Nokia N82 Bluetooth + GPRS/3G: A few months ago I did an interesting discovery about using m… http://bit.ly/cJ5B8c Tags: fresh, [...]
I would love if the bluetooth/rfcomm stack was smart enough so that we don't need to hard-code the channel.
[...] is the original: Nokia N82 Bluetooth + GPRS/3G | Starlight 标签: appid, cellphone, detected, device, few-months, get-one, internet, invalid, [...]
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I have also an n82.. I use blueman to create the serial device (rfcomm connection), then I use networkmanager for the connection.
No phone crashes, no scripting involved ;), really great.
Please make sure that the apn is correct in the phone menu..
[...] Nokia N82 Bluetooth + GPRS/3G | Starlight [...]
[...] Nokia N82 Bluetooth + GPRS/3G | Starlight [...]
hello,
i'm fighting with changing dialup channel too, but on nokia E52.
And because i don't use networkmanager, m sollution was to have "scripted channel guessing":
http://temp.jhr.cz/ikiwiki/html/blog/2010/02/14/bluetooth-rfcomm-bind-by-name/
maybe this could inspire you ;o)
be aware that my blog is in czech but the bash script should be selfexplanatory.
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