I have an Optimus T, rooted but with the stock ROM. I ran the Titanium Backup "integrate Dalvik into ROM" function, which seemed to work fine, but it didn't free up that much space, so I ran the "undo Dalvik cache integration". It rebooted, and now it seems to be stuck in a loop at the Android logo. The "Master Reset" (T-Mobile Support Community: Master reset using hardware keys - LG Optimus T) does not work - the recovery screen appears briefly, then it goes into the Android boot loop. Is there anything I can possibly do?