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Latest version of Firmware S5 will not install

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Hello all,


I just tried to install the latest firmware for the Ultimaker S5 using a

USB-stick but the printer says it can't validate the files.

These files were downloaded from the website a couple of times

but no luck!

The files are:


Any help on this is highly apreciated!

Kind regards,


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40 minutes ago, Dim3nsioneer said:

Maybe try a different USB stick.

Thanks, I will try that!!


18 minutes ago, Smithy said:

Or try to download it again and check if the file is still in that format. Mac Safari tries sometimes to unpack the downloaded file automatically and then it is maybe just a .tar instead of tar.gz


Network install from the printer is no option?


Unfortunately I can not connect the printer to internet due to our local network

security configurations!

Can it be done from a PC to the printer?


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14 hours ago, Lammertus said:

Yes I did, 2 files in total but no luck at all! ( 1 file is a tar.gz or something

and the second file is the .sig file )

The printer runs fine for the moment but I'd

like to have the latest firmware.

Just checked, the files are rootfs- and 



Is there a download site for downloading the current and maybe older versions,

just in case of??


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43 minutes ago, WesleyE said:

The URL from Smithy is the same one that the printer accesses when it's downloaded through the network, so it should work. Additionally, could you try to download these files through another browser?

Hi WesLeyE,


Thank for helping me with this, I just re-formatted the USB-stick just in case and

downloaded the files again with Iexplorer instead of Chrome.

Now it has installed ok.

Hopefully now it works even better!!


Thanks everybody for helping me with this!


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