zhou2008 Download Instructions: https://github.com/fagci/uv-k5-firmware-fagci-mod Download and extract, then flash.firmware.packed.binOkay. After flashing, press F+5.(NOAA)Enter You can switch modes (FM, AM, USB) by pressing the number 0. I don't know why there's a USB but no LSB. I don't have a radio that can receive all modes in the UV frequency range, and I'm not sure if it will be able to correctly receive USB. Use the up and down keys to switch frequencies, use the number 6 key to adjust the step size, PTT enters listening mode, use the flashlight key to switch the backlight, EXIT to exit. The others don't know how to play yet. Has anyone done any in-depth research on this?
BG5AMH Because all connections above 10M use USB, there's no LSB, but I don't think the USB functionality is actually useful.