- Remove top cover of radio by removing all 8 screws.
- Disconnect speaker and move top aside.
- Locate the CPU on the radio, it has a crystal glued to the top of it and is located in the front left corner of the radio, it's the largest IC in the radio.
- To the EXTREME left of the radio, you will see a row of pads, all empty except for a diode to the front, and one to the back. There are about 6 or 7 spots for diodes, but only 2 installed.
- Remove the FRONT (closest to head of radio) diode with a small soldering iron or other tool.
- Turn the radio back on, it will AUTOMATICALLY reset.
- You now have ext coverage eg. TX 450-470, TX 150-170, etc...
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