I downloaded the 1.85_demo.bin file. I followed the instructions to flash it with the burn tool, but it didn't work.
If I change it from develop to factory, it works. I finally got it to work and flashed it, but the sw version was downgraded from 0.9.2 to 0.8.9. The 1.85_demo.bin file seems to be an old firmware version. Is there a newer version?