On Thu, Jan 19, 2017 at 11:51:05AM -0600, Dan Williams wrote: > On Wed, 2017-01-18 at 16:36 -0500, A. F. Cano wrote: > > On Tue, Jan 17, 2017 at 10:52:42AM -0600, Dan Williams wrote: > > > ... > > > Ok good, this helps. It seems we need to be in mode 2 before we > > > can > > > get anything useful. The +CIND response is especially useful, > > > since we > > > can see that yours indicates the device has service. > > > > > > Also, you you try: > > > > From mode 2: > > > > > AT+CREG? > > > > +CREG: 0,1 > > > > OK > > > > > AT+CREG=? > > > > +CREG: (0-1) > > > > OK > > > > > Thanks! > > > Dan > > > > > > Thanks for your ongoing help. > > Excellent, assuming we can trust the mode=2 CREG response, that means > you're registered with the network. CIND also indicates that you have > service and that you're not roaming. > > Is there any chance you can move the phone to a location that has no > service (a basement, elevator, etc) and check what the result is when
The best I could do was wrap the phone in multiple layers of aluminum foil and connect that to the ground of a 3-prong AC socket. The resistance between the aluminum foil and the screw driver stuck in the wall (with copper ground wire in between) is about 0.5 ohm. > the phone isn't registered? I can sometimes do this by putting the > laptop and phone into the clothes washing machine in my basement, since > I don't have a faraday cage lying around :) With the grounded aluminum foil, this is what I get (from mode 2): AT+CREG? +CREG: 0,1 OK AT+CREG=? +CREG: (0-1) OK This is the same I got without the aluminum foil, so either the aluminum foil isn't enough, or those commands are useless. More likely the former since I can still connect ppp (see below). AT+CIND ERROR The above I hadn't tried without the aluminum foil. Then I got back to mode 0 and connected ppp (via pon). It could do all the steps, got the local and remote ip addresses and the 2 name servers. All this with the phone in a big bundle of grounded aluminum foil. My improvised faraday cage is a big failure. > Dan Sorry this test didn't provide useful info. Augustine _______________________________________________ networkmanager-list mailing list [email protected] https://mail.gnome.org/mailman/listinfo/networkmanager-list
