How to modify the SN code and REV version number of a Mellanox/CX-7 network card?

[guanyi2025]

After flashing the OEM version of the Mellanox/CX-7 network card to the original Mellanox firmware, how can I modify the values of "Engineering changes" and "Serial number"? Simply put, this means changing the network card's SN code and Rev version. Is there any expert who knows how to do this? Please offer some guidance!

 

[i386]

If you already have the stock firmware running why do you want to change revision or serial number? There is no advantage.

I have now 4 generations of mellanox nics (cx-2 onwards) and many are oem versions (including serial numbers) but run stock firmware without any problems.

 

[SlowmoDK]

To hide origin of cards ?

 

[mcdaguo]

The price of the OEM version is lower. By modifying the SN of the OEM version and replacing the label, the card can be transformed into the official version to obtain more profits.Only some illegal dealers will modify the SN,Normal users will not have this need