Open the WIFIPLUG app and login to your WIFIPLUG account.
Tap the device that you would like to rename. This will bring you to the device options page.
Press the 'UPDATE FIRMWARE' button. The app will then check if there is an update for your device. If there is you will be asked if you would like to start the update now. Press 'YES' to begin the update or 'NO' to cancel this process.
Your device will now begin updating. During the update period please do not toggle your device on or off or disconnect it from power. The app will let you know when the update has finished.
Step 5 [optional])
Tap the device icon to the left of the device that you would like to update. This will bring you to the device options page. You will notice that the firmware version will have updated to reflect the update.