After upgrading into 4.5 i lost all the empty space in the device memeory but not the media crad, i can't use voice dialing, it keeps saying memory full, delete some data. i removed all my sms and messages. nothing helped. i went to options>status> it says File free = 0.
i went to database size it says total size 712.6k
do you know how much free space you had before you flashed 4.5? try reinstalling it, or revert back to 4.2. I didnt have any problems on mine when i upgraded, good luck
I would restore your previous data to get your BlackBerry up and going (check your file free and all) and then try the upgrade if you so dare. This is a beta OS afterall.
Posted from my CrackBerry at wapforums.crackberry.com