Sandisk SSD Plus 480GB shows only 16kb!

After a few months I have the error that
BIOS shows the Sandisk SSD Plus 480GB as Sandisk Milpitas, with 16kb of storage.
No SMART available.
Testet on Win, Linux, different PCs.
How to recover data?
Linux testdisk sees C/H/S only 1 cylinder!

Mine SSD happened the same thing! Do you had success in recovery?