Is it still possible to get an upgrade package to take the MK2S MMU1 to 2.5 or any other version?  

Discontinued

I am pretty sure that has been discontinued.  I would contact support.  

Not sure

Posted by: @jason-10

The PCB board-based print surface on my MK2S MMU1 is in bad shape and the scratches are imprinting on the print surfaces.  I don't see where it is possible to buy just a replacement PCB print surface board from Prusa, and I think I'd prefer the replaceable metal bed that came with the MK 2.5.  Is there any way to  still buy an upgrade to the 2.5, or at least upgrade the bed?  Or has that been discontinued?

Thanks!

I am looking for a reliable answer too! Have you contacted the support?

Response from Support

Yes, I did get a response(below) - however, I don't think the linked document addressed how to upgrade the specific extruder used in the MMU1.  So, I am asking for clarification.

Hello,unfortunately, the upgrade bundle has been discontinued, but we should still sell most of the parts separately. You can check this article  https://help.prusa3d.com/en/article/upgrading-mk2-s-and-mk2-5-s-to-mk2-5s_200009  it should help you with the upgradeBest Regards / S pozdravem—Jakub KučeraCustomer Support

RE: Is it still possible to get an upgrade package to take the MK2S MMU1 to 2.5 or any other version?

You can always replace the PEI sheet: https://www.prusa3d.com/product/pei-ultem-sheet/

Peter