I had the same problem as my blackberry z10 was showing the connect to computer logo. I didn't check the battery status before I initiated the security wipe. All attempts to do the IE check for updates failed.
@crackp0d gave me this link
Updating the BlackBerry 10 Dev Alpha Device Software - Download for Windows - BlackBerry Developer
The phone is back up now. All I have left is to restore the missing icons. I will keep you posted.