Hoping this is right forum, saw note but don't see "test equipment and testing" forum. I do appreciate the sorting that Mods have to do. Have a new RigExpert AA-55 Zoom in hand. I got it Thursday. Love it. It's a wonderful little device. But for one tiny small issue: Selecting memory slot 4 locks it up completely. Actually don't have to select it. If the cursor passes over slot 4, it's over. Stop, turn it over, pop out/in battery or disconnect all power. It won't respond to anything else once it locks up. I've tried twice to submit a form to RigExpert, and since that failed I've sent a note to the vendor. AS the software updating is Windows based and I am not, I cannot use their files for the "latest update". I find no "support group" online. I find no way to see what the current software release is for this model. I have firmware ver 1.18 according to the splash on startup... WHOOT, I found a way to clear the memories and that resolved my issue. nevermind!