Bosch Sensortec | BME280 User Manual 9 | 23
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3.2 Upgrading Firmware
3.2.1 For App 2.0 Board:
To upgrade the firmware of DD2.1 UI to match the current version, follow the steps below:
Click Menu -> Settings-> Firmware Upgrade. The following window appears:
Figure 9 : Firmware upgrade window
Click Enter Boot mode.
▪ Switch off board, and press Switch 2.In Application board, all four LEDs will glow simultaneously.
▪ Click OK.
▪ All four LEDs will glow simultaneously.
▪ Press OK.
Figure 10 : Application Boot Loader
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