Don't know if it's the same problem, I have a MX4 running an old Ubuntu Touch version r1, with the same problem. When I download a new version and try to install it, I always get this error (see image http://imgur.com/XLxG4ql ). So I try updating it via ubuntu-device-flash
ubuntu-device-flash touch --channel=ubuntu-touch/stable/ubuntu I get this error error pushing: failed to copy '/home/dario/.cache/ubuntuimages/pool /ubuntu- b5f4cc2c8fdcda0c8c2f1112f8ea22648af9fe2306e9038147427e8306c2acb2.tar.xz' to '/cache/recovery//ubuntu- b5f4cc2c8fdcda0c8c2f1112f8ea22648af9fe2306e9038147427e8306c2acb2.tar.xz': No space left on device -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to system-image in Ubuntu. https://bugs.launchpad.net/bugs/1568889 Title: Upgrade to OTA10 fails on Meizu MX4 Status in Canonical System Image: Confirmed Status in system-image package in Ubuntu: Invalid Status in ubuntu-download-manager package in Ubuntu: Invalid Bug description: On Meizu MX4 upgrade from OTA-9.1 to OTA-10 fails. Upgrade downloads normally, phone restarts and starts system upgrade and after a while it freezes with strange icon (small microchip with red sign on it) When you turn off the phone and start it again it still presents itself as OTA-9.1 and again it founds and offer upgrade. Anyway some changes from OTA-10 seems to be applied, because I can see design changes, copy function in web browser etc. It's reproducible on my phone any time I try to upgrade. If I can help with output of some log, or anything else, please let me know. Well described here by Lars Kristian Wichmann Hansen: http://askubuntu.com/questions/754963/upgrade-meizu-mx4-ubuntu-edition-to-ota-10-fails To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1568889/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp