For programming the UV-5R in channel mode you better use a PC. The Baofeng UV-5R handheld transceiver uses an RS232 interface to communicate with a PC. The circuit of the programming cable presented here contains a 3V3 level converter. A 2.5 mm loudspeaker plug and a 3.5 mm microphone plug connect the radio with the PC. In the software select the proper COM port.
The software to program the variables (frequency, shift, channel name...) can be found here: