Upgrade Steps:

Renewal of license for Qbox blackbox C600/C601/C608/C808 plus

1. Dowload the iks_key.cfg file (send by email) in to thumbdrive.

2. Plug in the thumdrive to the box USB port. Go to MENU-Tools-Upgrade By USB.

"Upgrade mode" choose "ICS setting" , "Upgrade File" choose the iks_key.cfg,
press on "Start" button. It will show "upgrade successfully" after finish.