use nmcli.py config Band and C0

[flowerbone]

when I use nmcli.py in NodeManager to config openbts, I have a problem. When I config GSM.Radio.Band and GSM.Radio.C0,the issuse is as follows：
$ ./nmcli.py openbts config update GSM.Radio.Band 850
raw request: {"command":"config","action":"update","key":"GSM.Radio.Band","value":"850"}
raw response: {
"code" : 204,
"dirty" : 2
}
$ ./nmcli.py openbts config update GSM.Radio.C0 200
raw request: {"command":"config","action":"update","key":"GSM.Radio.C0","value":"200"}
raw response: {
"code" : 406
}
After I config GSM.Radio.Band successfully，then I config GSM.Radio.C0，but the C0 is always invalid。
Is there any way to solve it?

[Keskebeu]

I believe that umts picks up your radio automatically I could only use 900 band on my b200. I am trying to use it in a different band amd its having the same issue as yours but than i have to delete the database. In order for it to work again.

[Keskebeu]

@flowerbone you have to select the proper radio channel otherwise it won't work
Do devconfig to check all the options and the channel for 850 I usually use 141

In your case

rawconfig GSM.Radio.C0 141

It will start working after that. Channels and radio band should be changed one after the other and the bts should be restarted. In this case the radio band need the proper channel. 128-251 is the proper ARFCN for 850 mhz.

[Keskebeu]

I was also able to use umts on 850 thanks to finding the proper channel of ARFCN.