My Nexus 7 said for a number of days that I had to upgrade, but as soon as marshmellow started downloading, it stopped and said there is a problem with my WiFi. I resumed the download and the same thing continues to happen. I have tried a factory install, hoping it will download the latest software, but it still downloads 5.X initially. All other apps update and I am able to stream with no problem, so I'm wondering if it is not a hardware problem by any chance. I've looked up on how to do the installation manually, but it's way too difficult for me. Please help somebody This question has been asked a few times already, but nobody seems to have an answer. If you can assist, we would all seriously appreciate it. Thank you in advance!