Requirements:

• Computer
• USB cable type mini
  
• PI Service Terminal - Click here to download it
• Latest version for the Modem Update - Click here to download it

Modem Update

1) Download the latest version of the modem update and save it on the computer you use for the update:

2) Open the PI Service Terminal;

3) Connect the PC to the board via USB cable (yellow square):

4) Plug in the Battery (blue square)

5) On "Serial port" select the correct COM used (1), the Baud rate is set automatically (2) and click "Connect" (3) see image below:

6) Wait until the Main Menu appears or press H and press "P" to choose Setup NB-IoT module parameters:

7) Then press "U NB-IoT Module FW upgrade" and follow the instructions on the terminal:

8) Click on "Disconnect":

9) Open the latest version of the modem update .EXE which you have downloaded at the beginning of this guide:

10) Now type "1" for UAT [press ENTER];

11) Type the COM Port. In this example it is "5" [press ENTER];

Note: the COM port may vary from computer to computer. Type what is showing on the terminal

12) Type the COM speed "115200" and press ENTER;

From now on, DO NOT interrupt the process or the modem may no longer work. This may take up to 15 minutes to complete

When a green text appears the application started the modem update:

When "Hit ENTER to continue" appears, the process is completed. Press enter to exit:

13) Unplug the board and unplug the battery

- To double check if the modem update was successful follow the next given steps:
- Open the PI Service Terminal
- Connect the PC to the board via USB cable and connect the battery.
- Then click "Connect".
- Wait until the Main Menu appears or press "H"
- Press "L" for Print NB-IoT info
- Now you see at "Modem SW Version:" the actual version of your modem software.
- This version should be the same like the name of the downloaded file 
    (latest version of the modem update).
- Press now on "Disconnect" and unplug the USB cable and the battery