Once the data is written and the DVR is powered back on, the "Rev 4CH" model springs back to life. It’s as if the machine has been given a fresh brain, restored to its factory-original state, ready to record again.
They use a WinRAR or 7-Zip utility to extract the .bin or .rom file hidden inside the archive. Download FLASH DUMP DVR 80235 Rev 4CH rar
Since the DVR won't boot, they can't use a USB stick. Instead, they must open the DVR casing, identify the 8-pin flash chip on the motherboard, and use a hardware programmer (like a CH341A ) to "flash" the dump file directly onto the chip. The Outcome Once the data is written and the DVR