EMC Branded HGST SSD Firmware Update

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Dec 6, 2017
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Is it possible to update firmware in drives like the HUSMM1616ASS204 (IDs as HUSMM141CLAR1600)? I have a mix of C250 and C342 firmwares on my drives. I would like to upgrade them all to C342 or newer if possible. I was able to change them all 520B->512B blocks and 6gb->12gb rate already but would still like to upgrade firmware if possible.

Beyond doing it on my random computer. Is there a specific EMC SAN or appliance which could perform this update? Where are these drives from? If I got this appliance could I even apply this firmware without a active service contract to get the firmware itself?