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androst

mini nvr 2 n6200-4el downgrade firmware possible?

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Hello everyone

with nvr n6200-EL

and it can make a downgrade firmware 2015123110 to old version?

 

in nvr update standard mode

I have try nvr said invalid file,upgrade fails

 

in recovery mode the downgrade is finished correctly

but to reboot it to stop the network video recorder screen

 

Do you have a solution?

 

thanks you for all

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