KT&C KVR-0412H - Manual (Page 183)

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NOTE
As for the touch type of blackberry phone (ex. Storm), users may control PTZ in the same way as Android Phone.
10.5.6 Disconnection
 When disconnecting, please click "Disconnect” and exit the mobile viewer program.
10.5.7 Uninstallation
 Click “Menu>Delete” on the “DVR Viewer” icon in the download folder to uninstall the program.