Not very impressed with Apple at the minute after last software 7.1.1 update my wifi is disabled and greyed out and my battery life just disappears. Spoke to their tech people last night after doing some research on the internet. People are saying that the update is burning the chip but Apple say that this is not possible. Apparently if the chip is affected my phone’s hardware already had this issue and the update has just highlighted it. And yes you’ve guessed it, it is outside of the years manufacturers warranty so they could potentially want anywhere upwards of £166 to repair. What a con their update affects my phone but they wash their hands of it. NOT impressed and seriously considering moving to android, Samsung S5, on my next upgrade.