if it did a fresh install of 4.1 stock i dont think your memory went bad, it could just be a recovery problem, reflash latest twrp might work and nothing to lose by trying.Skyrockets never die, they just need to be flashed lol
We sold my wife's Skyrocket a while back, but mine's still around here somewhere. I can't get it to flash to anything other than stock 4.1 at this point lol. No idea why, and this is a problem going back over a year that I've never been able to solve. I almost wonder if the EMMC chip is damaged. Doesn't matter, though. 4.1 stock, rooted, runs just fine on the rare occasion that I break it out and play around with it. I've kicked around the idea of making my old Skyrocket into an alarm clock that can stream music, give me a full weather breakdown, etc. It seems like a worthwhile experiment.