S4 Firmware?

I was wondering whether it's possible to upgrade the s4 firmware in a similar way to the vci-100 and 400 can be upgraded?
It'd be pretty interesting as the number of things you could do mapping wise would be pretty sick.
I did search but couldn't find anything. If there is a thread just send it my way so I can give it a read!

It is possible to upgrade the firmware, but so far only NI can do it. As far as the 400 goes I get the impression that only Vestax can do it now.

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Originally Posted by photojojo

It is possible to upgrade the firmware, but so far only NI can do it. As far as the 400 goes I get the impression that only Vestax can do it now.

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Yeah. NI is the only person who can upgrade your firmware. I've never heard of anyone doing it though. is this common?