1. What’s the issue?

Gremsy has updated the new protocol - Mavlink 2 for some products, resulting in the conflict with the app connection and you cannot connect to the Gtune app via wifi connection.


List of products has issue: 

  • T3: Firmware 6.0.0 or higher (limited)
  • T3 V2 : Firmware 6.1.0 or higher


How did the issue occur? 

The notification is always “Not Found! Mobile data must be turned off before connecting” even when mobile data was turned off and you will still be unable to connect to Gtune.




2. Step to resolve 

Step 1: Power the Wifi module by connecting the Wifi module to the Wifi port.

Step 2: Connect your device to Gremsy Wifi.

Step 3: Open your internet browser, then access the wifi configuration page via:

  • Username: admin
  • Password: admin




Step 4: On the Serial Configure, replace the 57600 by 115200 then click apply.


After changing (default): 


Before changing:





Step 5: Unplug and re-plug in the Wifi module cable to reset.


Step 6: Connect to Gremsy Wifi, then connect to the Gtune app or software.