When you see the blue LED light up and hear a beep, it means the remote is installing a new update. During this process, it’s important not to disconnect the remote from the car or the internet. Doing so may interrupt the update and cause the remote to become unresponsive.

The update usually takes 1 to 2 minutes, depending on your internet speed. If the remote hasn't been used for a while, the update may take a bit longer. Once the process is complete, the blue LED will return to its normal green color, indicating the remote is ready for use.

So, if you notice a blue LED and hear a beep while working with a J-ReX remote, simply wait and allow the update to finish. No action is required other than letting it complete.