D-Link DIR-885L

The D-Link DIR-885L router was initially introduced in December 2015, and although discontinued in January 2019, could still be purchased new or refurbished via various regional Amazon sites well into 2021. This dual-band router contains a 1.4GHz dual core processor, 128MB of flash memory, and 256MB of RAM, which makes it an acceptable OpenWrt candidate. Its wireless hardware is capable of obtaining transfer rates of 1000Mbps in the 2.4GHz band and 2167Mbps in the 5GHz band. It has a 1Gbps WAN port, four 1Gbps LAN ports, and a single USB 3.0 port.

D-Link marketed this router as supporting DD-WRT. It contains an Emergency Recovery Mode, which allows easy switching between factory, DD-WRT and OpenWrt firmware. Although the last supported factory firmware update (v1.20b02) was released in October 2017, D-Link released a beta update (v1.21b03) in August 2018 to address the WPA2 KRACK vulnerability, and a subsequent beta update (also v1.21b03) in February 2020 to address a USB Shareport security issue.

http://www.dlink.com/en/products/dir-885l-ac3150-ultra-wi-fi-router

The A1 hardware version of this router is supported by providing a prebuilt firmware image containing the WLAN driver for the Broadcom BCM4366B chip. However, by manually installing the WLAN driver for the Broadcom BCM4366C chip, the OpenWrt firmware will work with the A2 hardware version.

There is also a A2 version WLAN Hardware is BCM4366C

→ Install OpenWrt (generic explanation)

For A2 hardware revision routers, additional firmware for the BCM4366C radio needs to be manually installed for the wireless to work. One can retrieve the blob directly from the Linux kernel git repository. To install the firmware, it needs to be installed in /lib/firmware/brcm/.

Please add the installation procedure here.

Install brcmfmac4366c-pcie firmware:

opkg update; opkg install brcmfmac-firmware-4366c0-pcie

cat /proc/mtd
dev:    size   erasesize  name
mtd0: 08000000 00020000 "firmware"
mtd1: 003fffc0 00020000 "kernel"
mtd2: 07c00000 00020000 "ubi"
mtd3: 003f0000 00010000 "boot"
mtd4: 00010000 00010000 "nvram"

1 fixed-partitions partitions found on MTD device brcmnand.0
Creating 1 MTD partitions on "brcmnand.0":
0x000000000000-0x000008000000 : "firmware"
2 seama-fw partitions found on MTD device firmware
Creating 2 MTD partitions on "firmware":
0x000000000040-0x000000400000 : "kernel"
0x000000400000-0x000008000000 : "ubi"
bcm_iproc 18029200.spi: using bspi-mspi mode
m25p80 spi0.0: mx25l3205d (4096 Kbytes)
2 bcm47xxpart partitions found on MTD device spi0.0
Creating 2 MTD partitions on "spi0.0":
0x000000000000-0x0000003f0000 : "boot"
0x0000003f0000-0x000000400000 : "nvram"

D-Link Emergency Recovery Mode

→ generic.flashing.tftp

→ generic.sysupgrade

cd /tmp
wget http://downloads.openwrt.org/snapshots/trunk/XXX/xxx.abc
sysupgrade /tmp/xxx.abc

cd /tmp
wget http://downloads.openwrt.org/snapshots/trunk/XXX/xxx.abc
mtd write /tmp/xxx.abc linux && reboot

• → generic.debrick
• → Rescue from failed firmware upgrade
• → https://klseet.com/262-lede/lede-d-link/384-d-link-dir-885l-lede-openwrt

DIR-885L can be unbricked by D-Link Recovery mode:

1. Reset to Factory from D-Link settings.
2. Hold Reset button on power on for 10 seconds until flashing red light.
3. Set static IP Address to 192.168.0.2 and then visit 192.168.0.1 and upload squash file.
4. After login, immediately visit 192.168.1.1, and IMMEDIATELY go to backup / flash firmware, and reset to defaults.
5. Then, afterwards go to system / backup flash firmware, and flash the firmware again. Untick the keep settings as well!

→ failsafe_and_factory_reset

→ Basic configuration After flashing, proceed with this.
Set up your Internet connection, configure wireless, configure USB port, etc.

→ hardware.button on howto use and configure the hardware button(s). Here, we merely name the buttons, so we can use them in the above Howto.

Front:
Insert photo of front of the casing

Back:
Insert photo of back of the casing

Backside label:
Insert photo of backside label

Note: This will void your warranty!

Main PCB:
Insert photo of PCB

→ port.serial general information about the serial port, serial port cable, etc.

How to connect to the Serial Port of this specific device:
Insert photo of PCB with markings for serial port

→ port.jtag general information about the JTAG port, JTAG cable, etc.

How to connect to the JTAG Port of this specific device:
Insert photo of PCB with markings for JTAG port

→ bootloader

None so far.

Space for additional notes, links to forum threads or other resources.

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