the problems still remains after upgrade to OTA-12 (sorry for the delay, I'm 
Mobile networks fail to reconnect after a long sleep, and switching airplane 
mode off/on solves this issue.
And the solution to re enable phone calls is still to reboot the phone as I 
don't find which service to restart.
More details :
- incoming and outgoing phone calls don't work
- for incoming calls, people are directly routed to the voice mailbox
- for outgoing calls, they stop quickly and you return to the phone keyboard
- during the phone attempt the volume, microphone, numpad buttons... of the 
phone keyboard don't work
- only receiving and sending SMS are possible
- Internet connection needs to switch the airplane mode off/on

The OTA-13 just have been published and I didn't have time to apply it for now.
I will take time to post a feedback after upgrading.


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  Mobile Data Network not working after screen is off for more then 2

Status in Canonical System Image:
Status in indicator-network package in Ubuntu:
Status in network-manager package in Ubuntu:
Status in ofono package in Ubuntu:

Bug description:
  With OTA-11 the Mobile Network 3G and H do not come back into working
  mode after MX4 comes back from turning off the screen.

  I reboot the MX4 and when it powers up all is working I get WiFi and Mobile 
Network 3G working great.
  I press the button to turn off the screen and leave it off for 2 or more 
minutes, when I turn it back on and unlock the device the Data network is not 

  I can make calls and SMS but MMS and Data has no connection, at this
  point i can toggle the Data switch in the mobile configuration or put
  the phone into airplane mode and back into active and it works until
  next time.

  Thank You

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