The fans spun up to a healthy hum. The blue screen returned, then the login prompt.
He opened a new browser tab and started searching for a replacement. Because he knew, with the cold certainty of an old engineer, that firmware can resurrect the dead. But it can't make them young again.
But the data was critical. If the NVR crashed fully, they'd lose the only record of a volatile chemical transfer that happened the previous night. Without that footage, the vault’s insurance was void.
The DS-7716NI-E4 wasn't dead. It was in a coma, and the TFTP recovery was the defibrillator.