[Unknownforce]

Does it only freeze momentarily, or does it freeze completely and you have to soft reset? I'm having an issue on mine where Text messaging is freezing when I'm typing. I'm just living with it for now, until SPB Mobile 3 comes out and I upgrade to the newest Groove or Juicy without TF3D. But perhaps this is the same issue as I'm having.

But if you're locking up completely, I'm not sure, I would say to reflash, and be sure to do a hard reset before and after. Also be mindful about what mods/apps you're installing afterwords. I would say to check to make sure they work without installing anything on top of the base flash install, if it works, install apps/mods one or two at a time, then test again, then you can see which one might be causing it. If you can get them all installed without issue, then you'll know it just needed a reflash, if it freezes up after a specific set of installs, then there's your problem, maybe find an update for whatever it is you're installing or you might just have to deal without it.

But also 3.9 is behind the times, 4.4 is the latest Juicy, I would say upgrade to that if you're going to re-flash.