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    Restoring DS-7216 Firmware using TFTP when no magic handshake

    This may be useful to someone, but I bought a non-working DS-7216HUHI-K2 from eBay. Turns out something had occurred during firmware update to brick this unit, however using Scott Lamb's Python script the DVR didn't ever do any handshake to start the firmware transfer over TFTP. Using the UART...
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