It seems like people had installed dd-wrt in this router without problem and the 2.4 hardware revision is known months ago.
The problem here is the firmware distributed by SamKnows, since it's very capped, I can't find any "easy" method to reflash other firmware, basically because no administration interface is available to the end user (it probably calls home to check for updates silently).
Posted: Wed Nov 02, 2011 15:33 Post subject: Re: SamKnows TL-WR741ND firmware
I had just got a TL-WR741ND v2.4, the router that SamKnows is currently distributing in Europe. Factory firmware seems to be very capped, no web interface, no telnet and no SSH.
Does anyone know if using RS232 is the only option to flash a new firmware?
I got my hands on one of those too recently. These units are running OpenWRT so you can simply put them into their failsafe-mode.
Here is how I've been able to connect to it:
1.) Connect to the first LAN-Port of the router and give your PC a static IP (192.168.1.2, gateway etc is not required)
2.) Start the device and once you see the 2nd LED of the device lighting up - immediately press the QSS-Button (located besides the reset button) a few times until you see the 2nd LED blinking really fast.
3.) Now you should be able to ping and telnet to it.
4.) Once connected using telnet - mount JFFS2 using the command "mount_root", then simply set a new root password ("passwd") and reboot using "reboot -f".
5.) The router runs a SSH-Server on port 2222 - so just connect to it as root using your newly setup password and explore the device.
That's all I've done so far but I think from here on it should be simple to re-flash the device.
Problem solved. I figured out how to backup the whole router.
FTP Server on your PC (Filezilla Server, e.g.);
Set your IP for 192.168.1.2 (e.g.)
Run the follow command on PC: "ping -t 192.168.1.1"
Connect the router with your PC and power on;
After you get ping responses, press the "QSS" button on the router;
Connect to it through Telnet (192.168.1.1:23)
Run the following commands on Telnet: