Wouxun KG-UV950P - Manually entering frequencies

I’m having trouble manually entering a frequency in the 6 meter band. 10, 2, .7 meters I can enter a frequency just fine. For instance, when entering 52.6200 - It just defaults back to the previously entered frequency. Anyone else having this problem?

I need to unlock my radio, but cannot find the key sequence, or the software to do it…10M and 6M are useless, as my local repeater freqs are higher than the current band edges of the radio…Cannot find usefull unlock info anywhere.