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How find a DVR model ? CCTV
(lemmy.today)
Whether it be electronics, automobiles or medical equipment, the manufacturers should not be able to horde “oem” parts, render your stuff useless if you repair it with aftermarket parts, or hide schematics of their products.
Summary video by Marques Brownlee
Great channel covering and advocating right to repair, Lewis Rossman
open it up and check the circuit board? What's it look like when you hook it up to a monitor?
Yep that will be my plan B if I can't found any documentation . it's ask for a password, but do not show brand nor model.