Never update the firmware on a failing drive before you try to recover your data because firmware update can destroy your data. The first rule of data recovery is do not write to the drive what you want to recover.
Manuel,If the SSD shows up with suspiciously small capacity like 1024 MB that means the controller stucked in failsafe mode because it loosen it's contact with the NANDs or due to degraded NANDs. Now in 2023, this Silicon Motion controller is support...