I just noticed this problem in the last couple days, and can't recall it happening before then. I'll look at my phone, (usually) after a long period of inactivity at work or in my pocket, and it'll be on 3G. And I'll wait for it to switch to 4G, do the airplane mode thing, etc, but it still sits on 3G. The first day I thought it was because 4G was down again nationwide. When I took a better look, I noticed that my Bionic had switched itself to CDMA Only. I've been playing this tug-of-war game with it for days now where I absolutely know it's on CDMA/LTE, but when I pick it up again to use it, it's switched itself. It usually happens when I'm at work and not using it most of the day (but it does sit on my company's wifi). I can't find any info on this on any forums. Is anyone else experiencing this problem? Could it be an app? A little while ago, I was searching for a 4G toggle switch, but all I found were ones that created a shortcut for me to switch it myself. I think AnyCut was the one I downloaded. I doubt that could be causing this since I've been unable to find an app/widget that can switch between the two modes for me.. let alone the app going bonkers in the background. I have had the handoff issues since the beginning, and I'm ok with fixing it with a good airplane mode toggle every now and then. But this is getting annoying.
Rooted, running debloated deodexed stock. Thanks.