TAGS: "Storage and Connectivity FAQ"

What this FAQ covers: A comprehensive FAQ addressing common questions about SD card storage in MDVR systems. It explains recording logic for dual SD cards, reserved free space, alarm file storage, and overwrite behavior, helping users understand and optimize SD card storage usage.

What this FAQ covers: A step-by-step hardware replacement guide to change the 4G module on an MDVR device. It explains how to disassemble the MDVR enclosure, access the communication board, and safely replace the 4G module to restore network connectivity.

What this FAQ covers: A step-by-step guide to use a LAN cable as a WiFi connection for downloading video from an MDVR device. It explains how to configure network and WiFi settings on the MDVR, enabling video download via a wired network acting as a wireless access point.

What this FAQ covers: A troubleshooting guide to resolve 3G connectivity issues on the ME909S-521 module. It explains how to verify SIM card band compatibility, check dial parameters, and adjust network mode settings on the MDVR to restore stable 3G network access.

What this FAQ covers: A troubleshooting guide to resolve playback issues with grec files in MDVR Player. It explains how to verify file names, check format association settings, and identify encrypted files to ensure successful playback of recorded video.

What this FAQ covers: A troubleshooting guide to resolve 4G dialing failures on MDVR devices, where the 4G state repeatedly shows DIALING or NO DIAL. It explains how to verify network parameters, import working configurations, check SIM cards and signal strength to restore 4G connectivity.

What this FAQ covers: A practical introduction to dual-USB SATA cables, explaining the function of each USB connector and when to use both ports for sufficient power, especially when connecting to a notebook, versus using a single port on a PC for both power and data transfer.

What this FAQ covers: A practical guide to formatting a USB flash drive to FAT32 using a PC. It explains how to prepare the drive for tasks like exporting video logs or upgrading firmware on MDVR and MCU devices, ensuring compatibility with system requirements.

What this FAQ covers: A data-backed guide to hard drive lifespan, based on Backblaze’s study of 25,000 drives. It explains the three distinct failure phases of hard drives, their annual failure rates, and key survival statistics to help users understand durability and data backup needs.

What this FAQ covers: A guide to RJ45 port definition for MDVR devices. It explains pin assignments (including 4/5 and 7/8 pins), wiring color codes, and conversion methods between RS765-6 and RJ45 for network connections.

What this FAQ covers: An analysis of CBR setting issues in NVR systems. It explains that file size differences (even with CBR enabled) come from IP camera bit rate control inaccuracies, and notes such fluctuations are normal; fixed file sizes require IP camera fixed bit rate settings.

What this FAQ covers: A guide to testing SSD heater function in NVR systems. It explains the test process (checking SSD temperature, status and recording under different ambient temps) to verify the heater works normally.

What this FAQ covers: A guide to connecting power cables for vehicle-mounted MDVR devices. It explains the 6-pin cable wiring (red/black to battery terminals, yellow to ACC), office test wiring methods, and voltage range (8V-36V) and cable diameter requirements for safe operation.

This FAQ explains why MNVR stops recording when HDD temperature drops below -5°C, and notes the root cause is the operating temperature limit of the SSD or HDD, which often only works between 0°C and 70°C, so changing to a different brand of SSD or HDD is recommended.

This FAQ explains how to check USB voltage value when it does not reach 5V, and guides users to use a multimeter to directly test the interface, and also suggests checking the USB cable for damage or incorrect definition.