I had a weird incident yesterday, the phone had been running fine all day but the wifi suddenly changed from 'on' to 'switching on' all by itself. I couldn't get the wifi to change status so reset the phone. It then stuck on the initial boot loader screen and wouldn't progress onto the Samsung animation. A battery pull didn't help but recovery was still okay, I formatted system, data and caches then restored a nandroid of v6.
It's been fine ever since, I've reset a couple of times to check, but this is the first hiccup this phone has had - it doesn't sound like SDS to me, anyone have an idea what could have caused this?