I needed the info quick. I came here and got it! Thanks!
Good work man👍
This didn't work for me untill I actually re-formatted my SD card on the laptop.
So
1. SD card physically in laptop
2. Format
3. Drag&Drop the .bin file
4. Re-insert SD card into Camera
5. Power on camera
6. BINGO!
we all know how to upgrade - but how to downgrade
thank you sir.