Two month ago after I got my 3G I dropped it and the screen broke. I got a new one from ebay and replaced it but, forgot to take off the stickers. I opened it up again and one of the cables broke. I went and ordered a new one again and replaced it, but this time my phone won't turn on. I just opened it up again and realized I never connected ribbon #3. Is it because of that or something else that's causing it to not turn on?