Was trying to help someone with the R800x Clerks recover from the lockout from too many pattern lock attempts. My search queries did not come up with an alternate version of hard reset like all the other Android phones have.
Is anyone aware of any key combinations that will get the Xperia into a reset mode? I found one post to hold down the right-left key under the screen which was confusing as there are right-left on the outside as well as on the slide-out keyboard. Either way, I tried both and neither worked!