D-Link DIR-2640 A1

The D-Link DIR-2640 is a Wi-Fi 5 Wave 2 router based on MediaTek MT7621A with 128 MB flash and 256 MB RAM. It has 5 Gigabit Ethernet ports, one USB 2.0 port, one USB 3.0 port and dual MediaTek MT7615N radios, capable of up to 4×4 streams on each band.

Supported Versions

BrandModelVersionCurrent ReleaseOEM InfoForum SearchTechnical Data
D-LinkDIR-2640A1snapshothttps://us.dlink.com/en/products/dir-2640-smart-ac2600-high-power-wi-fi-gigabit-routerDIR-2640View/Edit data
Unsupported Functions

Hardware Highlights

ModelVersionSoCCPU MHzFlash MBRAM MBWLAN HardwareWLAN2.4WLAN5.0100M portsGbit portsModemUSB
DIR-2640A1MediaTek MT7621AT880128NAND256MediaTek MT7615Nb/g/na/n/ac-5-1x 2.0, 1x 3.0

Installation

ModelVersionCurrent ReleaseFirmware OpenWrt snapshot InstallFirmware OpenWrt snapshot UpgradeFirmware OEM Stock
DIR-2640A1snapshothttp://downloads.openwrt.org/snapshots/targets/ramips/mt7621/openwrt-ramips-mt7621-dlink_dir-2640-a1-squashfs-factory.binhttp://downloads.openwrt.org/snapshots/targets/ramips/mt7621/openwrt-ramips-mt7621-dlink_dir-2640-a1-squashfs-sysupgrade.binhttps://support.dlink.com/ProductInfo.aspx?m=DIR-2640-US

→ Install OpenWrt (generic explanation)

OpenWrt can't be installed through the stock firmware on this router, as it only accepts properly signed and encrypted files in D-Link SHRS format. Use the D-Link Recovery GUI instead to upload the OpenWrt factory image for this router.

Debricking

→ generic.debrick

In case of a brick, a new firmware can still be uploaded through D-Link Recovery GUI. Keep in mind the recovery GUI only accepts unencrypted firmware images. A tool to decrypt factory images is available here. Alternatively, a new firmware can be flashed through the serial port or through TFTP, but you'll need to interact with the U-Boot console at power up to select any of these modes.

Be careful when playing around with the bootloader, as in case of a bootloader brick neither the emergency recovery mode nor the serial and TFTP flash options will be accessible. Since this router doesn't have a JTAG port, only reprogramming the flash chip through an external programmer can solve this kind of brick.

The stock firmware files provided by D-Link doesn't contain the bootloader, so obtaining a copy of it can be tricky. To help with that, an unmodified copy of the stock bootloader, dumped directly from the flash chip of a working unit, can be downloaded here.

Hardware

Info

General
Brand D-Link
Model DIR-2640
Versions A1
Device Type WiFi Router
Availability Available 2020
Comments - general
OpenWrt Support
Supported Since Commit https://git.openwrt.org/?p=openwrt/openwrt.git;a=commit;h=de768829a5c6cd1c7889ba25c50db07827cfc96c
Supported Since Release
Supported Current Release snapshot
Unsupported
Hardware
Bootloader ¿
Target ramips
System-On-Chip MediaTek MT7621AT
CPU MHz 880
Flash MB 128NAND
RAM MB 256
Network
Ethernet 100M ports -
Ethernet Gbit ports 5
Switch MediaTek MT7621AT
Modem -
VLAN Yes
Comments - network ports 1x WAN, 4x LAN
Wireless
WLAN 2.4GHz b/g/n
WLAN 5.0GHz a/n/ac
WLAN Hardware MediaTek MT7615N
Detachable Antennas -
Comments - WLAN MU-MIMO
Interfaces
USB ports 1x 2.0, 1x 3.0
SATA ports -
Serial ¿
JTAG ¿
Comments - USB & SATA ports
Misc
LED count 8
Button count 2
Power supply 12 VDC, 2.5 A
Links
Forum Topic URL
WikiDevi URL https://wikidevi.wi-cat.ru/D-Link_DIR-2640_rev_A1
OEM device homepage URL https://us.dlink.com/en/products/dir-2640-smart-ac2600-high-power-wi-fi-gigabit-router
Firmware OEM Stock URL https://support.dlink.com/ProductInfo.aspx?m=DIR-2640-US
Firmware OpenWrt Install URL http://¿
Firmware OpenWrt Upgrade URL http://¿
Edit the underlying data View/Edit data
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  • Last modified: 2020/12/28 01:54
  • by jamesm113