Mainly Blackberry Phones and Car Audio! Im a Pro!
Anonymous posted an answer for this Verizon Communications BlackBerry Pearl 8130 Cell Phone - Silver:
"hold the red power button on or pull out the batter and reinsert"
Anonymous posted an answer for this Canon ImageClass MF5770 Laser Copier Printer Fax Scanner Network:
"yes your best way is to do that! i would go to canon.com and download the latest update..."