Model huawei_hg622

Flashing via TFTP

  • Download the factory firmware image offered above to your Computer.
  • Configure a computer with static IP /24 and a TFTP server. On Debian or Ubuntu you can use either the tftpd-hpa or tftpd server packages.
  • Rename the downloaded firmware image to `` and place it in the tftp server’s root directory. (If using tftpd-hpa this is /var/lib/tftpboot/; if tftpd, it is /srv/tftp/) You can test that the file is downloadable with tftp localhost and get .
  • Connect the computer to one of the router’s Ethernet ports while the router is off. Press and keep pressed the router’s reset button and power it up. After about 7-10 seconds release the reset button. The power LED will flicker rapidly for ~3 seconds, indicating download of the firmware file.
  • The router will write the firmware to flash during ~40 more seconds of occasional power LED blinks, and then will reboot by itself, ready for use.

Flash layout

Region Label
0x000000-0x020000 CFE
0xfa0000-0x020000 cal_data
0x020000-0xf80000 linux
0xfe0000-0x020000 nvram
Huawei HG622
Latest release 18.06.2 Discontinued
Device Type WiFi Router
Vendor Huawei
Model HG622
Flash 16 MB
RAM 32 MB
CPU Broadcom BCM6368 (brcm63xx)
2 x 400MHz
Ethernet ports 0 x GBit — 4 x 100Mbit
WiFi

2.4Ghz: b/g/n

USB 1x 2.0
Switch Broadcom BCM6368
Bootloader CFE
Serial check_circle
Additional resources