Pull the battery to reboot your phone and ensure your Bluetooth is set to Not Discoverable. That will make your phone invisible to anyone trying to get into it via bluetooth. Your phone only needs to be discoverable for the few seconds it takes to pair it initially with another device.
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.