I urgently need some help. I updated my phone as it suggested an update last night, and ever since it is stuck on the start up screen. It was absolutley fine before. It will let me turn it off and then it shows the charging thing (i have it on charge), but it wont go past the 's' symbol when i turn it back on. I really cant risk loosing my photos. Is there any advice or anything that i can do to get my phone back??