I have tried every search combination of Toshiba + HK4R THNSN... Firmware Update Tool... and I can not find the utility. I found a site that talks about the SSD but not the software. I did find a software update tool but that was for from Toshiba's consumer division and it was just an OCZ flash program.
Data Center SSD | KIOXIA
If you can find it can you post your search query?
Data Center SSD | KIOXIA
If you can find it can you post your search query?