After rebooting, open CrystalDiskInfo again. The "Firmware" version number should be newer. Run a quick benchmark to ensure speeds are normal (500+ MB/s read/write for SATA).
The original firmware versions (S11FM01.0, S11FM01.1, S11FM01.3) have flawed garbage collection and wear-leveling algorithms. When the drive hits a certain number of program/erase cycles or power loss events, logic fails. ps3111sb firmware upgrade tool