Hi @DanHarding. Sorry to hear this is giving you trouble. I just attempted to reproduce the issue using both a NOTE-WIFI (our v1 WiFi Notecard) and a NOTE-WBNA (our v1 wideband North America cellular Notecard), and I was able to upgrade both from 7.4.2.16888 to 8.1.3.17044 without issue.
For next steps, could you please:
- Let me know which Notecard you are using.
- Collect a trace log of the DFU process, using one of the methods described here, and then share it with me here.
Thanks for your patience!
Hayden Roche
Blues staff firmware engineer