TP-Link TL-MR6400 v5

Write a short, relevant description of the device. Include a technical overview, but avoid marketing buzzwords/useless stuff. Two to four sentences is about right. A picture is good, too. Edit the page to see how to add pictures.

→ How to use LTE modem in QMI mode for WAN connection

The v21.02.3 image does not contain support for the built in LTE modem, however you can add this. Before installing any other packages, install luci-proto-uqmi and then download and install the following custom uqmi package:

wget https://github.com/mrhaav/openwrt/raw/master/21.02.3/uqmi_2022-05-16-0.5_mipsel_24kc.ipk
opkg install uqmi_2022-05-16-0.5_mipsel_24kc.ipk

Add a new section to /etc/config/network for the modem, adding the correct APN required by your ISP:

config interface 'Broadband'
        option proto 'qmi'
        option device '/dev/cdc-wdm0'
        option apn '<insert your ISP's APN>'
        option auth 'none'
        option dhcp '0'
        option autoconnect '1'

Flashing via OEM web interface does not work.

→ docs:guide-user:installation:generic.flashing.tftp

You can flash via tftp recovery:

1. serve tftp-recovery image as tp_recovery.bin on 192.168.0.225/24
2. connect to any ethernet port
3. power on the device while holding the reset button
4. wait at least 8 seconds before releasing reset button. After downloading the new firmware image, the power light should flash for about 3mins, then the device should reboot.

→ 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

→ failsafe_and_factory_reset

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

The default network configuration is:

Numbers 0-3 are Ports 1-4 as labeled on the unit, number 4 is the Internet (WAN) on the unit, 5 is the internal connection to the router itself. Don't be fooled: Port 1 on the unit is number 3 when configuring VLANs. vlan0 = eth0.0, vlan1 = eth0.1 and so on.

→ 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.

The TP-Link TL-MR6400 has the following buttons:

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!

The backside is secured by just one screw, which is accessible by removing the right side of the label:

After having removed the screw, the panel is attached by plastic clips and can be pried open. See below for the position of the clips:

(Do this too often and/or apply too much force and these clips will break).

Main 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.

• ...

How to add tags