Troubleshooting Firmware Updates Over the Air¶

Application Update¶

If something goes wrong during the application update (a disconnection, for instance) the application firmware is removed from the LoRa Edge Tracker Reference Design. However, the bootloader remains.

In this case, the device restarts and stays in bootloader mode:

• The tracker stays in pairing mode (the red led blinks) with the following name advertised: SMTC_TKR_OTA

Figure 70: LoRa Edge Tracker Reference Design in Bootloader mode (Android on the left, iOS on the right)

• Once connected to the tracker, the app fails to retrieve the LoRa Tracker configuration parameters. You can still update the application firmware, as shown in Figure 71.

Figure 71: Flashing the Application from the Bootloader

LoRa Basics™ Modem-E Update¶

If something goes wrong during the LoRa Basics™ Modem-E update (such as a disconnection) the tracker will not have the LoRa Basics Modem-E firmware. However, the application will start anyway.

• The tracker stays in pairing mode (the red led blinks) with the name SMTC_TKR_XXX advertised.

• Once connected to the tracker, the app fails to retrieve the LoRa Basics Modem-E parameters but you can update the LoRa Basics Modem-E firmware.

Figure 72: Flash LoRa Basics Modem-E Firmware