I just bought a pair of BaoFeng 888s radios and they don't work out of the box. I know they are on the illegal freqs, but I expected them to work. 

I got the cable, reprogrammed them to the recommended freqs (does any one has a good *.dat file for USA?) and they still don't work with each other. 

What could I possibly do wrong? I select the same channel (1-1 or 2-2) and press button to talk, but I don't hear anything coming from the other radio. 

The speaker is working, because I can hear it saying "power on".