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Hoping someone on the forum knows if there is a 'reset to defaults' for the IC-F21GM. I own two IC-F21GM radios that I purchased a number of years ago, one new and one re-furbished. I have never had a problem with either and the CS-F11 programming software has been working flawlessly through Windows XP, Windows 7 and Windows 10. Recently, both radios have stopped 'receiving' any transmissions. The last successful use was during a ski trip in January. The radios have not been dropped nor buried in the snow. The radios transmit simplex to blister pack radios and an Icom IC-F4001 with no issues. They are also received by my scanner and the scanner can find the CTCSS TX tones if I change them. When I try to transmit duplex to a local repeater with +5 MHz offset and configured tone, the repeater does not enable. The IC-F4001 setup the same way has no issues. The fact I cannot receive leads me to believe an RX tone setting is enabled, but using a clone read shows no RX tone enabled or set. Trying to program manually to 'no tones' and duplex using the multi-finger key presses and power-on sequences does not bring joy. I would like to try and start from scratch and hoping someone knows is there is a 'reset' that can get me back to the defaults or if anyone has any other ideas? Thank you, Chuck Smith