Today I tried to update the firmware of my Kingston Hyperx 120G with SH103_FW503.ffp using KINGSTON SSDNow SF Updater utility. Badly failed. I use Windows 7 Ultimate and my system crashed twice -got blue screen with a lots of instructions "..automatically shutdown to save Windows...". Fortunately the SSD is still intact and having read comments on this forum I have abandoned the idea of an upgrade. Thanks everyone.