FIXED
First thing to do is pray when in panic
I dont know what went wrong, i watch a movie and it went off, perhaps the battery...who knows..the charger was allready in for minutes prior to watching the movie anyway.
When i try to switch it on it did nothing. I take out the charger then the phone vibrates. I took the battery out and nothing happened when i tried again after puting it in. When i do put the charger in then the phone wants to start up by itself but just goes off after one or two dots.

Ok, so i read through the postings and thought to do what the one guy said. I dont know what the U key does. I didnt have to switched my phone off because it WAS OFF!!

1)Take out the battery and connect to pc, the charging light came on once yes.

2)So i took the usb cable out and put the battery back in.

3)Then i pressed and held the U key in and NOTHING happened. I did it again for almost ..say 30 seconds and STILL nothing happened.

BUT!! when i tried to switch it on the normal way then it went on and booted up so perhaps the U key thingy did work.

Then i charged the phone after this, it wasnt flat at all.

Good luck