ST STM32Cube Quick Start Manual page 15

Firmware Update – FFOTA
DATALOG2 is not the default firmware on the STEVAL-STWINBX1, so it needs to be downloaded on the board
by the user.
The default firmware enables the Bluetooth pairing via NFC and Fast Firmware On-The-Air upgrade through ST
BLESensor app.
By just turning on Bluetooth and NFC on the smartphone and placing your smartphone on top of the NFC
Antenna of the STWIN.box, the smartphone will read the Bluetooth pairing information and it will automatically
load the ST BLESensor.
In alternative, the STWIN.box can be connected to the ST BLESensor app by just open manually the application.
The board presents itself as BLEDfFw. During BLE pairing, if requested, you must insert the following PIN:
123456.
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