c-temp device firmware update (DFU)
This step by step guide shows how to update the firmware of the c-temp. In older firmwares (as used in this example) the c-temp is called “earconnect”. The One can be updated in a similar fashion.
Prerequisites
- nRF Connect App
- The c-temp firmware image as zip file. We will provide you this file upon request.
Instructions
Start by scanning for nearby Bluetooth devices with the nRF app by tapping on the “scan” button. Also activate the c-temp with a double tap and make sure that no other Bluetooth device is currently connected to the c-temp.
In the scan list you should find the the c-temp (or One) as “earconnect”. On an Android phone it is also possible to determine the sensor by its MAC address. Then press the “connect” button.
When the device is connected, press the DFU symbol. (Compared to the Two, it is not necessary to bond the device before doing the DFU.)
Proceed with the “distribution pack (ZIP)” file option.
Choose the file manager and navigate to the firmware ZIP file and confirm. In case you are asked to unzip the file, then choose to not unzip it.
Then the rest of the update happens automatically.
When the update has finished, the c-temp will shut down has to be activated again with a double tap. If something goes wrong, try to do the update again from the beginning.