Firmware Downloads

You can find firmware files for your NR310 device on this page. Use the table below or the changelog to find the right download.

Latest Firmware

This release includes our newest features and fixes. It has been fully tested via our internal QA process and real-world deployments to ensure all known issues are resolved. This is our recommended stable version, currently used as the default for mass production.

Identification of Network Security Firmware

To distinguish whether a device is running Network Security Firmware (hereinafter referred to as "Secure Firmware"), please refer to the following criteria. Secure Firmware is defined as firmware that fully satisfies the requirements of standards EN 18031-1 and EN 18031-2.

1. Identification Methods

You can verify if the current device is operating on Secure Firmware through the following indicators:

Standard Firmware Secure Firmware

 

 

2. Critical Upgrade Policy

Please be aware of the strict version control policy regarding Secure Firmware:

⚠️Important: The upgrade path from Standard Firmware to Network Security Firmware is permanent and irreversible.

  • No Downgrade Allowed: Once a device has been upgraded from a standard version to a Network Security Firmware version, downgrading back to a standard (non-compliant) firmware version is strictly prohibited.
  • System Protection: The system bootloader will reject any attempt to flash an older, non-compliant firmware image to ensure the device maintains its security certification status.

Identify Hardware Version

First, it is essential to identify the hardware version of your device. The NR130 series consists of two distinct hardware versions: V1 and V2.

Please note that Version V1 stop selling since April 2025.

You can distinguish the version by checking the firmware version number on the device status page:

  • 1.x.y: Indicates Hardware Version V1

  • 3.x.y: Indicates Hardware Version V2

⚠️ Critical Warning:
Hardware versions V1 and V2 are completely incompatible. Firmware is not interchangeable between the two version. 


Latest Firmware for V2

Applicapable for NR310 V2

 File  Release Date  Size  Display on GUI
 NR310 Secure Firmware V3.1.0  2025/11/20  9.4MB  v3.1.0 (ea5b12d-3)

 

Changelog

New Features

1. Add a downgrade prevention function. Not allow to downgrade to firmware versions prior to 3.1.0(ea5b12d-3).
 

Improved Features

1. Optimize the USB working mode of Quectel EC200A-EU Module.

2. The basic encryption algorithms of the firmware are changed.

3. The encryption algorithms of the below APPs are changed.

 APP  Version  Compatible Firmware
 DLMSmaster v1.1.1(2fcb256-1) v3.1.0 or newer
 DLMS to IEC104  v1.1.1(2fcb256-1) v3.1.0 or newer
 Modbus Master  v1.1.1(2fcb256-1) v3.1.0 or newer

 


Latest Firmware for V1

Applicapable for NR310 v1

 File  Release Date  Size  Display on GUI
 NR310 Standard Firmware V1.0.0  2021/03/23  6.9MB   V1.0.0(ee23d9b)

First release


 

 

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