If you experienced any difficulties updating or reloading the BlackBerry 10 Dev Alpha Device Software using the standard methods, RIM has offered a new way to update. Follow the steps below:

  1. Download the Dev Alpha Autoloader (Windows).
  2. Turn off your BlackBerry 10 Dev Alpha device.
  3. Run the file Autoload-DevAlpha-
  4. When prompt shows “Connecting to Bootrom”, connect your BlackBerry 10 Dev Alpha device to your computer and turn it on.
  5. If you have a password set on your device, type your password when prompted.
  6. After your device restarts, complete the set up wizard.

You can find more information on updating your BlackBerry 10 Dev Alpha here.