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Thanx for the tip. But I also managed to upgrade from older config tool :). Guess I'm lucky I didn't brick device. Somebody should notify Dahua that all their wiki articles are completely wrong. Oh and by the way, new firmware (2018-07-31) doesn't fix wifi issue with VTH5221D, it still rings...

I managed to update firmware with config tool 3.20. Firmware for VTH 5221 successfully updated to 20180731. I had problems with WIFI, VTO would call VTH but on answer call would fail. I have yet to test this with new firmware since it's midnight now and family is asleep :) Another thing, after...

How do you plan to upgrade. I can't get config tool to work. It doesnt show VTH or VTO, I can normally login to VTO and I can ping VTH.

How did you update firmware on VTH5221D? I'm trying to use config tool but it doesnt find VTH or VTO.