ubuntu-phonedations-bugs team mailing list archive

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

@jibel, thanks for the logs. The sequence of registration events that I
see is:

D/AT      ( 2080): AT< +CREG: 1,"0C94","07EEF3DF",2,0,0
D/AT      ( 2080): AT< +CREG: 3,"0D16","0540FD26",2,0,0
D/AT      ( 2080): AT< +CREG: 1,"0D16","0540FD27",2,0,0

Apparently the phone tries to register to cell 0540FD26 and it gets
registration denied (state=3). It recovers then registration (state=1)
after moving to cell 0540FD27.

What is weird is that the LAC is the same for both cells (0D16). This
implies that both cells belong to the same network, and therefore if the
device can register to one of them it should be able to do the same with
the other one. As that does not happen, this points to a modem FW error
or maybe that some tuning on modem parameters is needed on our side.

-- 
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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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