Wouxun KG-XS20H

Unlock expanded TX bands
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Switch off the radio.
Press and hold the 2 button on the microphone while switching on the radio.
Enter password 1445.
That's it! The expanded TX bands are now unlocked.

Lock expanded TX bands again
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Switch off the radio.
Press and hold the 1 button on the microphone while switching on the radio.
Thats it! The TX bands are now locked to normal ranges again.