Ds-80249 -p Rev 1.2 Firmware -

Place the .dav firmware file on a FAT32-formatted USB drive. Navigate to Maintenance > Upgrade > Local Upgrade on the DVR.

Pro tip: Always keep a backup of your original firmware (if possible) before updating. Use a tool like stm32flash -r backup.bin to read existing contents if bootloader is unlocked. ds-80249 -p rev 1.2 firmware

If the response indicates 1.0 or 1.1, you should upgrade immediately for security compliance (especially for PCI-PTS systems). Place the

| Metric | Firmware Rev 1.1 | Firmware Rev 1.2 | Improvement | |--------|------------------|------------------|--------------| | Boot time (to ready state) | 2.3 seconds | 1.9 seconds | 17% faster | | EMV transaction decode (T=1 protocol) | 112 ms | 91 ms | 19% faster | | AES-256 encryption (128-byte block) | Not supported | 8.4 µs | N/A | | Deep sleep current draw | 2.3 µA | 1.8 µA | 22% lower | | SPI max clock (error-free) | 8 MHz | 12 MHz | 50% higher | Use a tool like stm32flash -r backup