When I bought my detector it had version 1.75 installed.Thx earthly.
New machine. Latest software. 50 tones. The tone on the quarter was that of a penny. Andy S. FE 0. Rec speed 4. Sensitivity 24.
If the weather is fine, I might go back out to that plug with quarter and play some more.
I updated to version 2.0 which had been out for a few months.
Later on when version 3.0 came out, I updated to that version, but noticed soon afterwards that to me something was different about the way it reacted to targets while using multi frequency.
At first I thought it was my imagination since it was summer and I was not getting out much due to the heat.
I mentioned this to another forum member and he agreed that to him, something was different too.
We both reverted back to version 2.0.
Not saying this will help you out, but I’m sticking with version 2.0 for now.