Elias logged in. The interface was slightly different – a cleaner font, a new security banner – but all sixteen cameras were online. He pulled up camera 07, the one covering the chemical transfer. The footage was pristine, every frame intact.
The upgrade process was a horror show of yellow progress bars that didn't move for minutes at a time. The fans on the DS-7716NI-E4 roared, then sputtered, then went quiet. Elias held his breath. He could smell ozone – a bad sign. ds-7716ni-e4 / 16p firmware
"I'm going in," he muttered, plugging the USB into the NVR's front panel. Elias logged in