Carrier: ATT
Model: 8310

Error displayed on the screen 'JVM Error 547, flash write failed. Scroll for available commands'

After loading a new OS, desktop manager is not able to 'Reconnect to JVM'

I have tried 'wipe' using JL_Cmder, I have tried inserting the battery during 'erasing existing applications' process of the update, deleting vendor.xml, disabling automatic updates, removing and re-installing bberry desktop software - and still can't get the phone passed the JVM Error 547 !

I hear so many successfully got their phones functioning again - can anyone suggest things I can try?