D-Link DWR-922 rev E2

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multiple revisions of this device, use caution
bgn (N300)
4G LTE VoIP Router
Homepage Product page
Wikipedia D-Link
3rd Party Firmware
dd-wrt Status Unknown
OpenWrt Supported
Tomato any flavor Incompatible
Gargoyle Status Unknown
Platform
Brand • Model • Rev D-Link DWR-922 rev E2
FCC ID none specified
Type LTE router
CPU1 checkY MediaTek MT7620N
CPU1 Type MIPS 24KEc
CPU1 Speed 580 MHz
Flash1 Chip Brand? Model?
Flash1 Size 16 MiB 16,777,216 B <br />131,072 Kib <br />16,384 KiB <br />128 Mib <br />0.0156 GiB <br />
RAM1 Size 64 MiB 67,108,864 B <br />524,288 Kib <br />65,536 KiB <br />512 Mib <br />0.0625 GiB <br />
RAM1 Chip Brand? Model?
ETH chip1 MediaTek MT7620N
Switch MediaTek MT7620N
Ethernet Port Count 1-100MbE-WAN
4-100MbE-LAN
Wired Standard IEEE 802.3i/3u

802dot11 OUI: none specified

Stock bootloader JBoot
Expansion IF types USB 2.0
USB ports 1
USB Hub Compatible Untested
Power 12 VDC, 1 A
Serial Port (UART) yes, 3.3V TTL, (57600 8N1)

Flags:
LTE

Other
3rd Party Firmware Support OpenWrt • (List | Dev | DLs)
Retail
Availability End of Life
Radio 1
Chip1 MediaTek MT7620N
Wireless interface OUI none specified
Antenna Connector Type none specified
MIMO status 2x2:2
Wireless Standard IEEE 802.11b/g/n
802.11n up to 300 Mbps
802.11g up to 54 Mbps
802.11b up to 11 Mbps
WiFi Operating Frequency 2.4 GHz
 CPU1 brandRadio1 chip1 brandRadio1 chip2 brand
D-Link DWR-922 rev C2MediaTekMediaTek
D-Link DWR-922 rev E2MediaTekMediaTek

For a list of all currently documented MediaTek chipsets with specifications, see MediaTek.

For a list of all currently documented D-Link devices with specifications, see D-Link.

• 300 Mbps - 2SS 2.4GHz 802.11n (40MHz chan.) = N300 class

Flashing

Flashing OpenWrt

Target: ramips
Subtarget: mt7620
Package architecture: mipsel_24kc
Supported Since Commit
Support started version: 19.07.0
Current supported version: 25.12.2
LAN Hardware: MediaTek MT7620N
WLAN Hardware: MediaTek MT7620N
WLAN Comment: for wifi internal antennas only; external antennas are for 4G LTE
Installation method(s):
GUI OEM, D-Link Recovery GUI, JBoot web recovery, see git-commit
Recovery method(s):
D-Link Recovery GUI, JBoot web recovery, see git-commit
Comment:
for wifi internal antennas only; external antennas are for 4G LTE
git • >>
ramips: add support for DLINK DWR-922-E2
Very similar to the DWR-921-C1, except has a telephony/RJ11 port (not
sure if supported, I didn't try), wireless router with QMI LTE embedded
modem is based on the MT7620N SoC.

Specification:

  * MediaTek MT7620N (580 Mhz)
  * 64 MB of RAM
  * 16 MB of FLASH
  * 802.11bgn radio
  * 5x 10/100 Mbps Ethernet (1 WAN and 4 LAN)
  * 2x external, detachable (LTE) antennas
  * UART header on PCB (57600 8n1)
  * 6x LED (GPIO-controlled)
  * 1x bi-color Signal Strength LED (GPIO-controlled)
  * 2x button
  * JBOOT bootloader

The status led has been assigned to the dwr-922-e2:green:signalstrength
(lte signal strength) led. At the end of the boot it is switched off and
is available for lte operation. Works correctly also during sysupgrade
operation.

Installation:
Apply factory image via d-link http web-gui, or via recovery interface:

How to recover/revert to OEM firmware:
1.) Push and hold the reset button and turn on the power. Wait until all
    LEDs start rapidly blinking (~10sec.)
2.) DHCP should give you an IP in the 192.168.123.0/24 subnet, or set
    one manually
3.) Upload original factory image via JBOOT http interface at IP
    192.168.123.254
4.) If http doesn't work, it can be done with curl command:
      curl -F FN=@XXXXX.bin http://192.168.123.254/upg
    where XXXXX.bin is name of firmware file.
5.) You can optionally telnet to 192.168.123.254 before or during the
    upload and it will report the flashing status, memory address etc.
6.) Once web UI and/or telnet says "Success", power cycle the router, or
    type "reboot" into the telnet session.

Signed-off-by: Simon Quigley <squigley@squigley.net>
[squashed commits, word wrap commit message, rename signal strenght led
name to match what is used for the DWR-921-C1 since they share the led
configuration, add label referenced in the aliases node]
Signed-off-by: Mathias Kresin