USB to Serial Cell Phone Data Cable
This guide uses the data cable from Kyocera cell phone models KX433, KX434, K10, KX440, KX444, K490, KE433, KE434, K9, K404, K493, and K494. This cable is easily found on eBay; you can get one for about $6 shipped.
The cable uses the Silab CP2101 chip. The drivers can be found here:
http://www.silabs.com/tgwWebApp/public/web_content/products/Microcontrollers/USB/en/mcu_vcp.htm
Keep in mind that the chip in these cables can differ. Some simliar cables for the same model Kyocera phones use the PL2303 chip and the TX and RX wires will be a different color than what is shown here. One way to find out what chip your cable uses is to pop open to cover (see picture below).
Originally inspired by burnte from this thread.
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1.
Cut off the 3.5mm plug on the end and strip the black outer sheath.
2.
You will see five different color wires as shown above.
In this guide we are using the Silab CP2101 chip. Cutoff all wires except for the red and yellow wires. Then go ahead and strip the wires, but be careful as they are very tiny.
- With the Silab CP2101 chip, the yellow wire is TX and the red wire is RX.
- With the PL2303 chip, the white wire is TX and the blue wire is RX.
3.
You will then need a connector to connect the USB cable to the Fonera's pin headers. The best thing to use would be a 2 pin connector as show below.
4.
Connect the red and yellow wires to the 2 pin connector. Soldering them together is recommended, however, you can use electrical tape if you don't have soldering equipment.
5.
Cover up the solder points with electrical tape and you're done. Now get to flashing/unbricking your Fonera!
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