Had a few days of use without issues, go to make a call yesterday and it takes ages to connect, but instead of connecting I get a beep and then it returns me to my contact list. Tried putting the phone in and out of flight mode by holding down the power button and selecting the flight mode option, the option turns grey after I press it, won't allow me to press it again and seemingly does nothing. Press the off option and turn the phone back on and it's fine. Now I reckon I had suffered this with earlier firmwares. It's not a huge issue just a bit annoying. Anyone else had the same? Still love this phone, just slowly but surely addressing the issues with it.