MJR346

Had a friend ask me to make his Retrevis rt22frs radios compatible to talk to other brands of radios. I have a TIDradio Bluetooth programmer I use for my own radios and I removed all Tones from all channels. Then decided to test and found that the radio could talk to my uv5r but couldn't hear it back (simplex channel no tones- I'm a licensed user). And then couldn't talk to anyone else's radio till I restored it back to original. Wondering if anyone knows what is up?