This condition is the digital equivalent of a car's "check engine" light. The drive is physically connected, and the controller is receiving power, but it cannot initialize the NAND flash properly. Common causes include:
The SSS6698 series is designed as a single-chip solution for NAND flash memory management. Its primary role is to act as the bridge between the host computer (via USB) and the NAND flash memory die(s) inside the drive. sss6698-bb usbdev
If you suspect you have a drive using this controller and want to check its health or validity: This condition is the digital equivalent of a
| NAND Type | Typical ID | Remarks | |--------------------|-------------------|---------------------------------------| | Micron MLC 32Gb | 0x2C,0x64,0x44,0x32 | Stable, low latency | | Hynix TLC 64Gb | 0xAD,0xDE,0x94,0x32 | Slow writes, needs specific ISP | | Toshiba 24nm MLC | 0x98,0xD7,0x94,0x32 | Good compatibility | | SanDisk TLC | 0x45,0xDE,0x94,0x32 | Frequent firmware mismatch issues | Physical Inspection: If you carefully crack open the
ISP = Internal Service Program (firmware for the controller)