Wirelessly posted
Before you go so far as wiping and reinstalling the OS, remove the micro SD card if you are using one. If you have a SIM card, remove that as well. Wait a good minute before you replace the battery. See what happens without the SD and SIM cards. If it boots up, it would appear the problem is with one or both of the cards.
If that's not it, see
http://www.blackberryfaq.com/index.p...ng_Jl_Cmder%3F
http://www.blackberryfaq.com/index.p...nnect_and_wipe