Samsung 980 Pros can go into a read-only failure mode that can make data recovery difficult, if not impossible. A firmware fix is available.
Samsung 980 and 990 Pro SSD prices keep falling to new all-time lows on - Neowin
Samsung 980 Pro 1TB SSD Failure - Anyone Else Facing This Issue?
Test Samsung 980 PRO : des performances de premier plan
Samsung 980 - still issues or good with updated firmware?
Samsung 980 Pro 2TB Premature Failures (Update Firmware!)
Question - My Samsung 980 Pro 1TB(with Heatsink) has a Problem -- need help.
Samsung 990 PRO with Heatsink PCIe 4.0 M.2', comes with a heatsink. How would I find the right enclosure? Trying to use it as an external SSD Drive. - Quora
Samsung 980 Pro 2tb Firmware Issue: Identifying and correcting before you drive fails
Samsung 990 PRO with Heatsink PCIe 4.0 M.2', comes with a heatsink. How would I find the right enclosure? Trying to use it as an external SSD Drive. - Quora
After fixing dying 980 Pro SSDs, Samsung promises firmware for 990 Pro health issue as well - Neowin
Samsung Issues new Firmware to prevent Dying 980 Pro SSDs
ROG STRIX B550-F WIFI II : M.2 not running at PCIe - Republic of Gamers Forum - 922132
Samsung 980 Pro SSD 2TB M.2 NVMe Interface PCIe Gen 4x4 Internal Solid State Drive with V-NAND 3 bit MLC Technology - Micro Center