After taking my Razr Maxx for a swim in the ocean, I managed to get it working again after taking it apart and replacing the battery. However, aside from a few other problems, it now refuses to update. It is currently on version 2.3.6 and I'd like to update it at least to ICS, if not to JB. It downloads the update but only gets about a third of the way into the installation before rebooting itself. Now, I would try rooting it and manually installing the update, but the up volume button no longer works. Is there a way to root it without the use of that button, or any other way to apply the update?
Thanks in advance!