It's pretty easy and straight forward if you follow the steps carefully. You just have to read it carefully, more than one time, and see if you understand every single step you have to do. If you don't, ask before starting. Pay special attention to the numbers (versions and so). Then, once you have all you need and you understand it all, you can go for it. If not, and you don't have any experience tampering with android phones, stay clar until you can be without a phone for a couple days. In my experience, nothing really bad ever happens. But true is that your phone might be useles for a couple days if you mess up in one important step (unlikely). But there is always a solution. Just gotta ask and do some digging and you'll sort it out.
