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Monday, 04 May 2015 20:00

Recover bricked TL-MR3020

If your TL-MR3020 router is bricked with the following symptoms, most likely you can use this method to recover it.

  1. Ping the router without problem
  2. Telnet connection failed
  3. SSH connection failed

 

Solution:

  1. Put the router switch to AP mode
  2. Turn on the router power
  3. Push and hold the "WPS" button
  4. When the WPS Led flash slowly, switch on AP mode to 3G mode. The LED should flash quicky.

Now, you can Telnet to router

 

Erase the root data

Login to the router via telnet and enter the following command. Most likely your router is now recovered. 

mtd -r erase rootfs_data

Continue following procedures if it is still not working.

 

Copy firmware to router

  • Login to router via telnet and change the password in order to enable SSH
passwd
  • Copy the OpenWRT firmware to the router /tmp folder. I personally like and use WinSCP.

 

Upload the firmware to router

SSH to router and write the firmware to router. Where code.bin is your OpenWRT firmware file. 

mtd -r write code.bin firmware

Reboot the router and your router should be working now. If all the above methods is not working for you, then you should go for Serial Console method to recover the bricked router.

Published in Tutorials

How to increase storage on TP Link TL MR3020 with

The TP-Link TL-MR3020 N150 3G/4G Travel Router is a very small device with a size of 74mm x 67mm x 22mm, it has only 4MB flash and 32MB memory. The router have about 428KB (67%) space available after installing OpenWRT Barrier Breaker 14.07, you may encounter shortage of storage when installing certain extensions due to limited of router space. 

By employing OpenWrt's extroot, you can expand the storage capacity of your root file system using the additional space of an added storage device.

Published in Blog

I own a TP-Link TL-WR1043 V2.1 wireless router, I would like to test if it is able to run on OpenWRT or DD-WRT. it is first tested on OpenWRT, DD-WRT later, so far it has been working flawlessly for me.

 

About TP-Link TL-WR1043 V2.1 Wireless Router
TP-Link TL-WR1043 V2.1 is a 300Mbps Wireless N Gigabit Router, it has more memory (64MB) compared with the TL-WR1043 V1.x. Here is the comparison:

HW Version

CPU

Ram

Flash

Network

Gigabit

USB

Serial

JTag

1.x

Atheros  [email protected]

32MB

8MB

4x1

Yes

Yes

Yes

Yes

2.x

Atheros[email protected] 64MB

64MB

8MB

4x1

Yes

Yes

Yes

No

Published in Blog

此教程使用一个TP-Link TL-MR3020 3G/4G无线路由器来打造简单的无线广告机。目标是提供一个免费热点(hostpot)让公众无线上纲同时弹出hostpot提供者的广告(称之为Splash page 或者Landing page)。

TP-Link TL-MR3020的厂家固件(Firmware)功能有限,不能安装第三方软件包,因此,固件必须升级至OpenWRT,然后再安装NoDogSplash

虽然这里是使用TP-Link TL-MR3020为教题,一般支持OpenWRT的路由器也是适合的。 

Published in 电子与电脑
This is a guide on how to setting up a simple wireless hotspot using a TP-Link TL-MR3020 3G/4G Wireless N Router installaing with NoDogSplash. The goal is to provide a free hotspot with a splash page to advertise who is providing the hotspot, it should work as well for other OpenWRT supported router.
Published in Blog
Saturday, 15 February 2014 20:38

Wireless Router Remote Control Car

This is my first RC car control by an Arduino and a wirless router running OpenWRT. There are many OpenWRT supported routers, I'm using a TP-Link TL-MR3020 3G/4G Wireless N Router for this project since it is very slim, low power consumption and it is cheap.

 

RC car features

  • A webcam, the car can be driven without line of sight
  • A horn so that you can honk at people.
  • LED Headlights attached to the front of the car
  • Two wheel drive motor
  • Windows GUI application or web interface
  • Future Additions: Control by a smartphone (Android & IOS)
Published in Projects
Explains how to bridge network using two wireless routers, the first (Host) router is configure as Access Point & the second router (TL-MR3020) is configure as Client mode. Same method should apply to all other OpenWRT routers as well.
 
Prerequisites
  • Host router configure as Access Point. If you already setup a wireless internet connection in your house, usually your modem is configured as Access Point mode.
  • A working OpenWRT on TP-LINK TL-MR3020 Portable 3G/4G Wireless N Router
 
The routers is configure as two different subnet, assume using settings below as the example.
  • Host router IP: 192.168.1.1
  • Host router subnet mask: 255.255.255.0 or 255.255.0.0 if you want to access 192.168.0.x from 192.168.1.x
  • Host router SSID: ABC
  • Client router IP: 192.168.0.1
  • Client router subnet mask: 255.255.255.0
Published in Blog
Sunday, 07 July 2013 15:40

TP-LINK TL-MR3020 + OPENWRT + WEBCAM

This project uses an inexpensive TP-LINK TL-MR3020 Portable 3G/4G Wireless N Router with an Linux UVC supported camera to create an IP Camera that can be placed in a good location for surveillance.
 

Prerequisites

 
Published in Blog
After flashing the latest OpenWRT image file (openwrt-ar71xx-generic-tl-mr3020-v1-squashfs-factory dated 03-Jun-2013), my TL-MR3020 is bricked. All the LED is keep on blinking (about 3 seconds once) except power LED, and the network is getting connected and disconnected every 3 seconds. Very lucky that the problem was fiexed by using serial console and Tftpd32 method.
Published in Blog

If you had flashing the TP-Link MR3020 firmware to OpenWRT and now you want to restore it to the original state, here is a guide on how to make it. With this guide you will able to changing between original firmware to different version OpenWRT firmware.

Published in Blog
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