This is insane. I'm a computer tech, I build computers for a living. I repair components. Fixing this little crappy phone is crazy complex. Look at all the comments saying "be careful of x because I destroyed it accidentally". Not a one says "wow, that was incredibly simple".
I personally wouldn't try it -- I'd just get another phone and have it swapped onto my account. And then I'd stop doing whatever I'd done to break the first one.