WR703N v1.7 Warning

I bought a few more TP-Link wr703N routers and proceeded to flash the firmware like I had done with previous ones…. Bricked one, but the other is fine. The models with version 1.7 firmware cant be flashed the same way as the older ones I have. It’s serial console or brick. I did solder the serial points on the first one, but couldn’t fine the hot glue gun to hold them, so when the cables moved it ripped the pads straight off, and no matter how well I scratched the tracks back I couldnt get the wires to solder to Continue Reading →

WR703N Project Box’s

Wireless Serial Convertor

I’ve been inserting the WR703N’s into cases to make them more durable and less ‘touchy-feely’. The Serial to Wireless convertor – used when configuring Cisco switches, you an configure and upgrade the IOS on using it. This has been great for large installs then having to setup 20+ switches. Benefits include being able to sit comfortably at a desk while setting it up, and it runs off a phone backup battery so it doesn’t need to be plugged into a power outlet or USB – general run time is  > 2-3hrs. The case/enclosure allows it to be hanging from a Continue Reading →

WR703N – 1.5inch Digital Photo Frame (DPF) x2

During this post, I bought an additional keychain (which I backed up the firmware first). Anyway… The model/manufacturer is: Zipp DP605. Found a modified firmware here, mirrored here fw_disp_delightdigi_black_NEW_Zipp, Cheers superelchi and mumianex. I’ve also change the python script and lcd4linux.conf for lower CPU usage and scrolls when more than 8 are detected. Available here, and the original firmware is here full_Zipp_original. Update: 9-6-2013 I have purchased 2 more DPF keychains, another Kasier Bass, and a generic one from Target. This is the original firrmware for the new Kaiser Bass (noticeable because the logo’s have changed)   Cheers.

WR703N – 1.5inch Digital Photo Frame (DPF)

Close up with GPS & Mac address's blured

Please be aware this guide has incomplete information, and is very generalized. Ok, now I’ve got a reliable testing unit up and running – tested it for over a week. During that time I wanted to know if it had kernel panic’d or if the GPS had dropped out etc… So I looked into a few options: The easiest was to use telnet on from a laptop and just leave the screen open, this has other problems like battery life, bulky, heavy, and is over kill because you might as well just use the laptop. 16×2 character display LCD module, Continue Reading →

WR703N Sigh!

After a few weeks of testing I have hopefully narrowed down the problems with my latest WR703N setup, where it continues to reset the internal USB hub. I have plugged in an additional USB hub (un-powered) and plugged the USB flash drive and GPS into that. The GPS works straight away and the USB flash drive (/dev/sda2) doesnt have the same I/O and filesystem errors. Will perform thorough testing through out the next week and see how is goes. In the previous post I thought it was power to the internal hub, so I have tried adding a 100uF capacitor. Continue Reading →

WR703N – External Antenna

Final with backup battery

I wanted to extend the range of the WR703N to allow it to pickup more access points. My mini 4GB USB drives have also arrived in the mail, so this makes it the perfect time to start the mod. Here we have the devices used to complete the mod: 4 port unpowered USB hub, DLink external antenna, female SMA pigtail, 4GB Sandisk USB flash drive, and a WR703N running OpenWRT. Opened the case to see where the internal cable and mount can run. Decided off center of the 2 edges in the picture below. To start off open the WR703N Continue Reading →

WR703N – Wireless Serial Port

The following guide is what I’ve used (twice) to turn a WR703N into a wireless serial port for configuring Cisco network switches/routers. I have already installed OpenWRT onto it before this guide starts. Tap the reset button on the side while inserting the power cable and the status light should flash blue fast. Set you PC’s IP address to 192.168.1.* (last octet cant be 1). Telnet to address and type the following: Setup LAN Networking uci set network.lan.ipaddr=<Ip Address> uci set network.lan.gateway=<default gateway> uci set network.lan.dns=<DNS-Server address>  uci commit /etc/init.d/network restart Install Minicom and USB serial driver opkg update Continue Reading →

TP-Link WR703N Re-purpose Reset Button

I needed an easily accessible button and rather than re-opening the case and soldering one to the PCB, I’ve found a way to re-purpose the reset switch to perform tasks. For the while loops and if statements I had to install bash because the default shell is ash. Summary When the router is turned on it now boots, starts kismet-server and when the rc.local is just about finished the blue status LED turns off. When the reset button is pressed the kismet-server is killed and it connects to my home wireless network. When the status LED flashes fast, I can Continue Reading →

TP-Link WR703N Backup Battery


As a test, I purchase a 1900mAh iPhone external backup battery to see if it would be able to run the test WR703N I’ve been working on. Broken it open to expose the internal circuitry and battery. Solder a micro USB connector onto the battery leads. De-soldered the iPhone connector and cut a space to push the Micro USB lead through and reassembled. Checked the voltage on the leads before adding the external Micro USB make sure it’s still good to use, then checked it running with the external charging cable – All good. The blue lights indicate the current Continue Reading →

TP-Link WR703N USB Mod

Insert PCB's back into the case and resolder leads

Read this post on installing an internal USB hub into a WR703N. The main difference I have is the WR703N I’m currently working on is just for prototyping (I have 3 more in the mail), I want all USB ports external to allow for different device testing. I was able to find the same USB hubs on eBay. Found a post that explains how to safely open the case. Once open you can see this is version 1.6 of the router, although the main PCB has version 1.1 on it…?? Dismantled the USB hub and desoldered the USB leads. Used a Continue Reading →