Hi!
I have the SSD (z400s 256gb) about 1 year with Windows 10 in it.
Before firmware upgrade, the life indicator was 99%, after firmware upgrade and system “shutdown” and “start”, the life indicator was 71%. The SMART others numbers were not changed in the firmware after upgrade, onlye life indicator and (media wearout). I know that the media wearout is used to measure the life span.
MY SMART: