Found following solution working on OTA-12: Within Terminal: /usr/share/ofono/scripts ./test-network-registration /ril_0 default
Switches back to hsdpa if available without disconnection from the network. Testing with ping 8.8.8.8 If there is no reply the network manager service hangs, then following solves the problem sudo service network-manager restart -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1424791 Title: Ubuntu Phone: cellular data did not recover after losing coverage Status in NetworkManager: New Status in network-manager package in Ubuntu: Incomplete Bug description: Hi! Today I travelled in train and I lost my mobile signal. BUG: After have signal, the cellular data (3G) is not recovering. I have to enter in plane mode and exit from that mode for having 3G again. Thanks in advance! To manage notifications about this bug go to: https://bugs.launchpad.net/network-manager/+bug/1424791/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
