Hi, I expenrienced the same issue and surfing the web investigating I may found the issue that related with BIOS restrictions made by VAIO.
I succed making SSD working just once and after reboot BIOS didn't recognize anymore the device, once cleared NVRAM it see just once the device.
Some users fixes the problem enabling "AHCI Optional Rom Support" accessing BIOS file and editing that, that sounds kinda risky but It could help.
Anyway it depends from the BIOS notebook have installed, my VAIO SR21M/S got American Megatrend BIOS that is more difficult to edit, if you got Phoenix BIOS it will be easier.
Intel said my drive went bad and replaced it. Lost all data. The turnover was fast - 4 days but I still lost all my data.