DFU firmware upgrade

Firmware upgrade using BLE smartphone connectivity.

To upgrade firmware using DFU:

• You need appropriate firmware version for specific tracker. Usually: app_update.bin. Download the file to your smartphone.

• You will need nRF Connect app. It is available via app store on your smartphone.

• Connect your tracker to the power supply. You can check that the tracker is discoverable by smartphone the Smart Parks Sensors app. Take note of the device name.

• Open nRF Connect app and scan for available Bluetooth devices.

• Connect to tracker device.

• When connected you will see DFU icon in the upper right corner. Click on it.

• You will see list of last download files. If your firmware file is not on it, locate it in your phone file system.

• Select Test and Confirm option.

• The DFU upload will begin. DO NOT cancel upload and wait until is finished and app returns you to the main screen!Select the app_update.bin file. The following pop-up window will appear.