(I'm not very sure if my explanation will make sense, english isn't my first language haha) So I decided to update the software of my samsung galaxy s2 and while it was being downloaded, it was at around 27% and it stopped downloading, so I canceled it. I decided to click on "check for updates" but it said "no connection" even if my wifi was working perfectly. So I tried to install it. The next screen did say that it has finished downloading, I believed it, and I proceeded to install the software update but now it has been stuck at 7% for an hour. How do I fix it?