If you wipe it from the device it will leave whatever the current OS is on the device. If you wipe it using a program such as JL_Cmder, that will remove everything from the device and you will need to reinstall an OS since the device will be displaying the 507 error.
Posted from my CrackBerry at wapforums.crackberry.com
CrackBerry is in no way Affiliated with BlackBerry. We take pride in our unbiased content, however do occasionally receive free products from vendors that we review or discuss. For more info click here.