I am using Sentinel V2.02 rev. 01. I have had my SDS 200 over a year and do updates weekly. I have yet to have it update the firmware which seems odd to me since I have to think they have made changes since then. Firmware shows 1.10.00, Database 10/10/2021, and Sub CPU 1.02.01. I have searched to see any other places I may be missing to get these updates, but to no avail... there are also no updates at my.uniden.com where I registered the device... or maybe there are no updates yet and the versions are correct and up-to-date. Thanks...