Well, I have a few different OEM versions of the firmware for this model, but still no progress in flashing it. I am wondering how risky it really is to run it on the original firmware. I would be backing up the system the drive is intended for every night, so I am not really worried about data loss, more worried about the SSD bricking and being out $$ for something that is 'technically' preventable.
If anyone has an OEM version, or knows where to get from say an HPE/Dell/Cisco/Supermicro pack of the Samsung DC Toolbox that is new enough to support the PM1725 series of drives - that could be helpful.