what ones have you downloaded? sometimes it couple be a rogue app causing problems. Its worth a shot deleting one of the apps you added and see if that fixes it. If that doesn't work try the downgrading the os
It doesn't look like any of those would cause something to go wrong but you never know. Try deleting the apps and rebooting the phone and give it a test run. You should be able to tell if was an app that messed it up or if you are going to have downgrade the os
It could be the battery. I experienced the same symptoms with my phone: dying in the middle of phone conversations or extreme browsing. Plugging it in or popping out the battery was the only way to restore power. Any buzzing on the line before it died? I found this to also be a symptom of a dying battery. Anyway, once I replaced the battery, the issue was resolved.
Posted from my CrackBerry at wapforums.crackberry.com
CrackBerry is in no way Affiliated with BlackBerry. We take pride in our unbiased content, however do occasionally receive free products from vendors that we review or discuss. For more info click here.