You may experience the following issue with your Samsung Instinct®.

When you connect your Instinct to a computer using the USB data cable, the phone will display a Phone Off message. Any incoming calls will go directly to voicemail and missed calls will not be recorded in the call history log on the phone.

No action is required as the phone is operating as designed to prevent phone-to-computer data corruption. To minimize the possibility of missing incoming calls, limit the time the phone is connected to a computer using the USB data cable.

Note: At any time, you can check that you have the latest software version for your phone. For instructions on how to check your software version and update your phone software, refer to Check for Updates.