SanDisk Ultra II 960 GB - No firmware update since I bought it?

Hello everybody,

I own a SanDisk Ultra II 960 GB SSD since, I think more than 2 years, and I use it as my system drive in an Asus laptop.

I noticed that I never got any firmware update for it, and when I check for updates with SSD Dashboard it will say I am using the latest firmware.

I downloaded also the “SanDisk SSD Updater” that one Forum staff member put in another post, but the updater also say that no upgradeable SanDisk SSD has been found.

Am I cursed? I’m stucked with factory stock X31200RL and my SSD have some weird behavior sometimes (100% activity freeze with no real data transfer on drive)

Please let me know how to upgrade the firmware of my SSD.

Model: SanDisk SDSSDHII960G

Firmware: X31200RL

S/N: 1522xxxxx417

SSD Controller: Marvell 88SS9189

Disk interface: Serial-ATA/600

Device type: SanDisk 19nm TLC NAND

Thanks in advance!