So I recently bought my HTC One M7 on eBay and it works great. The only issue is one that I have when I try to install a software update to get android 4.4 on it. When I turn the phone on it says: this build is for development purposes only. Which I assume means the bootloader has been unlocked, the phone also has clockwork mod on it. After downloading the update I press install now and the phone restarts ready to install the update but then ClockworkMod pops up saying: Invalid command argument unknown volume for path [INTERNALSDCARD blah blah blah] Can't mount [INTERNALSDCARD blah blah blah] and on the top of the screen it says Root access is missing. Root device? So, is there any way for me to update my phone normally without having to go through the process of flashing a rom on it. Is clockwork mod saying that If I root the device the update will then work? Any help is appreciated.