I did not try to update it yet. What I tried to take it, is to connect it in MTP mode of file transfer, and run uppercut directly and read it there (when you run uppercut opens LGUP where I take the device). Hope this can help you!
XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. Are you a developer? | Terms of Service