Note: This is probably applicable to both the iPhone and jailbreak sections. So I just thought I would share an excellent experience at an Apple retail store the other day. So I originally purchased my iPhone 5 factory unlocked from Apple in Dec. of 2012 and had to replace it on march for wifi connection issues. Following that, I decided to try something new with jailbreaking my new iPhone, and used it like that perfectly up until this past Friday, Sept. 6. For the past month I had been having cellular connection issues (I use Net10, an ATT MVNO) in areas where I previously had solid connection, I would have restarting the phone multiple times to regain cellular connection. Before going in to the Apple store I did check with a few different sim cards but still no give. So having heard all of these stories of people taking in jailbroken phones, I went and disabled every tweak I could and removed the rest (hiding all the apps and such), before I went in. Genius bar was able to get me right up to the front without a prior appointment (around 7pm) and got right down to it. So sitting there, the genius is checking my phone settings and such when he asks me "so what keyboard are you using?" I kind of panicked thinking that he would give me tons of trouble for having a jailbroken phone, but when I told him where I got the keyboard from and how it works (basically swipe up on any key to get the symbol mapped to that key), the genius actually said "oh thats awesome! I had my iPhone jailbroken as well up until I upgraded to iOS 7." So anyways he was really great about trying to help me keep my jailbreak while yet fixing the problem when we start talking about my carrier and such, and he starts talking about Tmobile and his experience with them in the area. I had been interested in switching to tmobile for a while, but my iPhone didn't support AWS so I was weary of doing so with the half-refarmed network. So I tell him about that and he actually offers to just switch my phone out under warranty for a new one sporting the AWS support. So in the end I walked out with a brand new (white box) iPhone 5 supporting Tmobile. Awesome CS and I now have a Tmobile sim card on the way. Long story short: Went to Apple with iPhone having wifi issues and Genius replaced it (this is the 2nd time) just so I could have the "newer" version iPhone A1428 that supports Tmobile's AWS bands, something I had been wanting for a while.