I have an unlocked BB Storm 9530. I was on .148 when the problem occurred.
I was talking on the phone outside, and when I finished the conversation, I wiped the sweat off the screen and went inside. When I checked my phone later on (about 5-10 minutes later) it was asleep. It wouldn't turn on. Screen and physical keys completely unresponsive.
I pulled the battery to hard start it and it started up just fine. When it got to the home screen, a window popped up saying "Handheld Powering Off...Press any key to abort". I pressed the screen (and every other key since) and nothing would abort the shut down.
I have already wiped the phone with JL_Cmdr and reinstalled .148 on to it. After the install was complete, the phone was good. It was back to the original VZw home screen. I played with it (went through all the welcome screens, set the clock/date, time zone, alarm, etc) for a little bit, then figured it was okay to slide in my SIM card.
I DID NOT pull the battery, I just slide the SIM in. Screen stayed up, wouldn't connect. Went to Manage Connections and Restored Connections. Didn't work. Finally, I pressed the End Call button to restart it.
Now, I'm back to square 1. It will not power up unless I battery pull and then it will not stay on.
I have researched and am going to try downgrading to .75. Because if I have it connected via USB while it's rebooting, the DM and Redirector will catch it and sync with it. I just can't turn it back on.
FYI: I purchased the phone off of eBay, with a SquareTrade warranty. Have already filed a claim with them for repair/replace. Just really want to do all I can before throwing in the towel.
Plus, once you've played with a BB, it's hard to go back to my Nokia N95 8GB. LOL!

Any help is greatly appreciated.
__________________

Twiztidfig
Have:
Torch 9800
Bold 9700 *LUV IT, but the micro-usb took a s#!t*
Storm *Unlocked* 1st BB
Nokia 95 8gb *Unlocked ME Edition*
Nokia 95 *Unlocked ME Edition*
iPod Touch 2G *Jailbroken & WiFi Calls!!!* PLAIN OLE BROKEN NOW
iPod Touch 3G *Jailbroken*
iPhone 3GS iOS 4 *Nothing done yet*