Firmware Update Tool available for LTE Extension Board

[CamilaSouza]

Hi, everyone!

Sony just released a new firmware update tool.
It works to update the firmware on the LTE extension board from version RK_03_00_00_00_04121_001 to the most recent version RK_03_00_00_22_13151_002.
If you are experiencing any connection issues with the LTE board, please update the firmware and check again before posting your question on the forum.

Here you can find the Update Tool along with instructions on how to use it: https://developer.sony.com/develop/spresense/downloads/lte_downloads/lte_fwuptool-2/

To find out the version of the firmware on your extension board, you can run the Arduino Example LteTestModem.

[jens6151 0 1 1]

@CamilaSouza
LteTestModem shows that my firmware is VERSION: RK_02_01_02_10_108_54.
I cannot find any information on how to upgrade to one of the versions mentioned.

What did change between those versions?
Where are the release notes?

Edit:
-> Push the small triangle and a menu appears
-> Select "LTE Update Note RK_02 (Japan only)" and read "This software is only for use in Japan. For the other regions, please see Update note."
-> Switch the page to Japanese and get the info that

• RK_02_01_02_10_108_54 is the most recent version for Japan and that latest changes are (translated)
  • SMS feature added
  • When using a SIM that supports SMS, you can receive and send SMS
  • Reduced self-resets of the modem and fixed some minor issues

Correct?

[CamilaSouza]

Hello, @jens6151-0-1-1
Yes, you are using the latest FW version for Japan region
And those seem to be indeed the updates for this FW version.