Hi, I'm new here but I've been working for years with camera and DVR repairs. I have received many dvr with bricked firmware and the only solution I have is to copy firmware from another dvr but the serial number cannot be equal to not affect the functioning of the cloud. In older models like HGHI-SH it was possible to edit the serial number on the CH341A programmer but it is no longer possible on HGHI F1 and K1 models. Is it possible to change with putty? Thanks in advance.
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