ubuntu-phonedations-bugs team mailing list archive

[Alfonso Sanchez-Beato <alfonso.sanchez-beato@xxxxxxxxxxxxx>]

@jibel, no, that is not happening, you are registered all the time. Some
of the lines you see there are not events, but answers to AT+CREG
commands.

Event:
< +CREG: 1,"0C94","07EE0015",2,0,0

Command and response:
> AT+CREG
< +CREG: 3,1,"0C94","07EE0015",2,0,0

As you see, it is pretty confusing, as the registration status is in one
case the first integer, and in the other case the second one. You can
ignore the responses to AT+CREG (remove the lines with the extra
integer) and just take the events to follow state. In your case:

D/AT ( 2124): AT< +CREG: 2
D/AT ( 2124): AT< +CREG: 2,"FFFF","0FFFFFFF",0,0,0
D/AT ( 2124): AT< +CREG: 3
D/AT ( 2124): AT< +CREG: 1
D/AT ( 2124): AT< +CREG: 1,"0D16","0540FD27",2,0,0
D/AT ( 2124): AT< +CREG: 1,"0D16","05400015",2,0,0
D/AT ( 2124): AT< +CREG: 1,"0D16","0540FD27",2,0,0
D/AT ( 2124): AT< +CREG: 1,"0D16","0540FD27",2,0,0
D/AT ( 2124): AT< +CREG: 1,"0D16","05400015",2,0,0
D/AT ( 2124): AT< +CREG: 1,"0D16","0540FD27",2,0,0
D/AT ( 2124): AT< +CREG: 1,"0C94","07EE0015",2,0,0

so you start searching (2), for a moment you get access denied (3, maybe
while authenticating?), then you are registered (1) without further
changes.

Btw, you can add "-v threadtime" the the logcat command to get timing
information.

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Phonedations bugs, which is subscribed to ofono in Ubuntu.
https://bugs.launchpad.net/bugs/1607823

Title:
  Cellular connection drops out

Status in Canonical System Image:
  Incomplete
Status in ofono package in Ubuntu:
  Confirmed

Bug description:
  MX4 running 379 from 7/15

  I recently noticed the phone was Searching for a signal for some time, even though I know it was connected just prior.
  Wifi is disabled.

  The attached syslog shows the modem disconnecting and reconnecting
  several times throughout the morning.

  Interesting ofono commit on the 12th related to managing power states
  http://people.canonical.com/~lzemczak/landing-team/ubuntu-touch/rc-proposed/meizu.en/arale/375.commitlog

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