I've got a genius bar appt tonight about this, but thought I'd post and collect some views here too I have had an iPhone 5 from launch. It was great, no problems, but after about 18 months (End of March this year), it developed a 'halo' effect around the edge of the screen. I'm in the UK, which means apple will fix/replace iPhone's for 2 years if you bought in an apple store, so I went and made a genius bar appointment. Apple were as per usual brilliant, offered to repair or just replace the unit with a brown box refurb, and I chose the refurb option. What a mistake. Oddly the new iPhone is great in all ways, apart from the fact the signal is noticably worse. Where I would have got 5 bars, I get 3, and where the signal was always a bit dodgy, I now get No Signal popping up. It also seems to lose the data carrier signal a lot more, even when I do have a signal. Is this possible? Did I just have a good one before, and now I'm Mr Average, or what? On a side note, while messing about trying to fix, I noticed the sim card tray doesn't fit completely flush with the side of the phone. I'm 99% sure this isn't all in my head - but I welcome your views? Any comments or experiences with similar symptoms? Cheers!