Xiaomi Router 3G

Specifications§

Processor

MediaTek MT7621AT, MIPS, 880 MHz

Flash memory

128 MB NAND

RAM

256 MB DDR3

Ethernet

2 × 1G LAN + 1 × 1G WAN

USB

1 × USB 3.0

Wi-Fi chip

MediaTek MT7603EN, MediaTek MT7612EN

Wi-Fi 5 GHz

AC, 80MHz, 2x2, 867MB/s, 256QAM

Wi-Fi 2.4 GHz

N, 40MHz, 2x2, 300MB/s, 64QAM

Build features§

• FunctionalityExcept:
  Cloud services
  Components
• Factory resetWith the Reset button
• LEDSystem / No internet
  Internet connected
• Mesh compatibilityWith original devices and clones
• Built-in storage55.2 MB, Entware can be installed
• Modem rebootWorks without a hardware mod

Preparing for flashing§

1. Download and unpack the firmware archive The “Download” button is in the panel under the device name.
2. Connect the router to the computer with a cable (Ethernet) Flashing over Wi-Fi is not possible.
3. Reset the router Go through the initial setup and set the password 12345678.

Installing from stock firmware§

1. Running the script In the archive, run !Start.bat in the Установка KeenBOOT (KeenBOOT installation) folder.

2. Choosing the items Choose items 1 → 2 → 3 → 4 one by one.

   

3. Backup and switching to KeenBOOT The script saves a backup of the factory (EEPROM) partition to the installer/data folder and reboots the device into the KeenBOOT bootloader.

4. Entering KeenBOOT Enter the KeenBOOT bootloader (how?) at 192.168.1.1.

5. Backup Save a Full backup in case you want to revert the firmware.

6. Preparing the EEPROM Use the EEPROM created by the script during the installation from the stock firmware, or extract it from the full.bin saved in Breed if the system was installed earlier. In the “Set MAC” tool, load the EEPROM, enter the MAC address from the sticker and put the generated eeprom.bin into the firmware folder.

MethodINew, recommended§

flash erase 0x80000 0x7f00000

1. Upload Firmware, EEPROM and U-Config from the archive one by one through the web interface, following the instructions.
2. Reboot the device.

MethodIIOld§

1. Serving the files Start !HFS.exe and drag all .bin files from the firmware folder: U-Config, U-State, EEPROM and Xiaomi-R3G_xxx into its window.

   

   Tip

   To minimize installation problems, it is recommended to set the IP address 192.168.1.2 on the network card.

   

2. Flashing over Telnet Start PuTTY, connect over Telnet to 192.168.1.1 on port 23 and paste the commands with the right mouse button, waiting for the previous one to finish.

   Warning

   • Turn off your OS firewall and antivirus beforehand.
   • The messages skipped bad blocks and Flash erasure failed with -5 after entering the commands are normal.

   Caution

   • Each line is a separate command. If it fails, run it again.
   • Compare the IP in the wget commands below with the IP shown in HFS. In the Breed bootloader it always starts with 192.168.1.xxx.

After the reboot the device starts.

Updating the firmware§

To update, use any method for NAND memory.

Since version 5.0.7 the firmware can also be updated through the web interface.

Reverting to stock firmware§

You will need the backup saved before flashing. The steps are in the instructions for MT7621.