My blackberry curve won't turn on?

My blackberry curve wont turn on?

• hi, ive had my blackberry for a couple of months and today it wont turn on. usually, it freezes when i get too many notifications on facebook/bbm etc, and today i had to turn it on and off. but when i turn it back on, it starts to to start up, and it loads. like it has the wee bar and it fills up showing you how long like left it will be until it turns on. Now it will only fill the bar to three quarter then it just stops! could someone please tell me what to do?! really need some help, i use my blackberry alot! thankyou:) x

• Answer:

  you could try removing battery with phone on then replacing, also that white loading bar moves quite quickly up to just over half way and can then take ages to complete, when i did the last update on my 9300 it moved quick to half way then took 20minutes to complete !