NINA-B3 series - System integration manual
UBX-17056748 - R13 Software Page 28 of 72
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4. While the bootloader is running, send the u-connectXpress NINA-B31X-SW-3.0.0-0.005.bin file
to NINA-B3. The file is sent using XMODEM protocol.
5. Once the binary file has been sent, NINA-B3 displays the greeting text +STARTUP. Enter the
Software version identification AT+GMR command again to make sure that the latest software
version is now installed.
2.3.1.2.3 Updating both the SoftDevice and u-connectXpress connectivity software
The SoftDevice is updated with AT commands using dual-banked approach, and as a SoftDevice
update overwrites the application currently flashed in the module it is also necessary to flash the
ConnectivitySoftware application after the SoftDevice update.
☞ You can send AT text commands to NINA-B3 to execute tasks using open-source terminal
emulator software that supports XMODEM, like TeraTerm or ExtraPuTTy. Alternatively, you can
send all AT commands described in this section using the s-center software in AT mode. See also
the s-center user guide [6].
Procedure
The examples in this procedure have been created and tested on EVK-NINA-B31 using TeraTerm.
1. Setup the serial port connection. See also Setting up the serial port.
2. Prepare NINA-B3 to accept the SoftDevice binary file for download at the defined baud rate.
Enter the Update software AT+UFWUPD command together with the SoftDevice values <mode> and
<baudrate> defined in the NINA-B31X-CF-<version>.json file. Note particularly that <mode>=1.
See also Prerequisites and Command syntax.
3. Enter the configuration action command “l” to list all firmware images and check the current
version of your SoftDevice.
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