I upgraded customer HDD to SSD San Disk X400 M.2 2280 but now QuickTech Self Boot doesn't detect the drive. I've tried several legacy modes: ON/ON, ON/OFF, OFF/OFF, OFF/ON with no luck.
This is a known issue with this drive. Make sure the May 2018 update is applied to the SSD firmware.
SanDisk X400 Solid State Drive Firmware Update
'This package provides the SanDisk X400 Series Firmware Update and is supported on Alienware, Inspiron, Latitude, Optiplex, Precision, Vostro and XPS models that are running the following Windows Operating System: Windows 7, Windows 8.1 and Windows 10. '
Fixes & Enhancements
- Fixed drive not detected issue and blue screen
- Fixed issue encountered in some system where drive was lost during cold boot