For those who can't access through telnet or screwed up. Your last option is to use serial. However i will not be held responsible for any damages done. And please do note that you are voiding your warranty by doing so.

You need a serial port. I used this http://cytron.com.my/viewProduct.php?pcode...nverter%20V2011

Change voltage of UART to 3.3v.


Connect TXD on HG850a to UART RXD, RXD to TXD(UART) and GND to GND.
Open putty change to serial.
Change to the proper COM port. (Check it in the device manager )
Baud rate: 115200

If everything is successful, you will be able to read the "English" printed from the device and be able to type.
Wait until you see the word "Login:" then follow the original instruction

And once again, I will not be held responsible for any damages/bricked device/injuries or anything bad that happens.

This post has been edited by jian118: Mar 30 2013, 11:47 PM

1 & 3.
Method 1:
Get single core wire and http://cytron.com.my/viewProduct.php?pcode...20Jumper%20Wire
Solder single core wire and plug into female header.
Unsolder after doing it.

Method 2:
Buy header http://cytron.com.my/viewProduct.php?pcode...)%201x40%20Ways and http://cytron.com.my/viewProduct.php?pcode...20Jumper%20Wire
and solder onto pcb


2. Solder required as no connector available on the PCB