= How to change Retevis RT-95 band programming (also good for CRT Micron radio) = Turn on the radio while pressing FUNC + P4 together this get you into test mode turn the ch selector into CH43 Mode 3 is enlightened press the ptt, keep it pressed - the color changes on 03 turn channel knob on 02 release PTT switch off the radio and switch on again - and there is it, business mode, radio unlocked! Reference: https://www.youtube.com/watch?v=V1PsSyk1-Lo