DejaConnect Error: Your Android device is offline

ATTENTION: If your device is on Android version 4.3 or higher and you are seeing this error message, you will need to install the latest CompanionLink update for your version to fix the problem. You can download the latest update here.

NOTE: The fix is included in CompanionLink 5.0 build 5078 and CompanionLink 6.0 build 6008. If your version of CompanionLink is earlier than this you will need to upgrade to fix the problem.

ATTENTION: If your device is on Android version 4.2.2 or later, you will see a security message on the device the first time you connect to the computer after following the instructions below. Be sure to say "OK". Click here for more info

This error results from a poor physical USB connection; usually due to poor contact between the data pins where the USB cable meets the device terminal.

How to fix it

Here are two methods you can try, neither of which is guaranteed to work.

Unplug/replug the USB cable from your Android. Ensure that the USB cable fits tightly into your Android's USB port, then try syncing again.
Try replacing the USB cable with one that fits more tightly into your Android's USB port.

NOTE: While micro USB cables conform to a general standard, cables from some manufacturers tend to fit more tightly than others.

Special Notes

DejaConnect relies on the Android Debug Bridge (adb) to transfer data, which is especially susceptible to poor USB connections. Often, it's the case that other Android USB functions will work correctly with a poor data connection (e.g. charging, mounting, etc.), but adb (DejaConnect) will fail.
Once your Android goes into its "offline" state (as reported by CompanionLink), you must unplug/replug the USB cable to get it back into an "online" state, where it's available to send and receive data.
If the problem is not resolved using any of the solutions above, you may want to consider using a different sync method