Question selling SSD - format and TRIM enough for wiping data?

[Pextaxmx]

According to this post, as soon as you make a new empty volume for the entire space of an SSD then TRIM, even if each LBA block still has the data, it is instructed to return zero.. so even if data recovery tools lists recoverable files, the recovered files are zero-filled. Unless filenames still contain important personal data, this method seems to be sufficient for wiping an SSD for sale, instead of lengthy "clean all" command. Can anyone confirm this is the case?

https://www.quora.com/Is-it-possible-to-recover-lost-data-from-an-SSD-with-TRiM

 

[JinxTheWorld]

I just used the "sanitize" feature in my BIOS. Seemed to do the trick lol. Was limited because it had my OS on it. Copied it to a new NVME and because they were identical PC wouldn't let me wipe the old one for some reason. So i did it through my BIOS.

 

[Pextaxmx]

just did some experiments with a SATA SSD. It had GPT simple volume and contained lots of family photos.
(1) diskpart "clean" (instead of clean all)
(2) initialize as MBR (intentionally different type), make a volume for the entire size
(3) send TRIM

after this steps DMDE doesn't seem to find any of the image files.

This is just out of curiosity... to understand what the TRIM instruction does to the SSD. Not that it is important not to run clean all command to wipe data.

This also suggests that it becomes very hard to recover any deleted data once a SSD is trimmed.