sir i try this same process but not response
(probably with Control-U) and follow the on-screen instructions to update the firmware.
If the bootloader goes to a command prompt instead of the update menu, use the 'printenv' command to show what the 'ipaddr' and 'serverip' IP addresses are set to...
i am upgrading my dvr then suddenly electric light was cut off,
then i connect my UPS and And DVR on but only 1 BEEP no Display.
DVR MODEL NO -DS-7216HQHI-K1