[luxmana]

im using bb 8520. recently updated os about a month ago.
last 2 days my battery last only about 4-5 hours after fully recharged. then one time, after my bb went off bcoz of no battery, when i recharged and tried to reboot, it stucked at the white screen with the word 'blackberry'. it stucked there until the battery drained out. daily alarm still pop out but i cant do anything. i tried to connect to pc with desktop manager. it tried to connect but nothing happened. i waited for a long time but still connecting.
help plz...