Downgrading DS-7204HWI-SH

May 14, 2016
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I have a DS-7204HWI-SH device which I recently upgraded to firmware V3.1.4 build 150430 - however I'd like to downgrade this back to V3.0.0 build140217.

I've tried downgrading through the web interface but this seems to fail - the response coming back from the device is "Bad XML".

I've also tried downgrading using the TFTP method, but I fail to get any incoming TFTP connections from the device. I've Wiresharked it and I don't actually even see the device sending out any probes, only DHCP requests.

Can anyone suggest any possible approach I can use to flash it?

Thanks