Retevis RT84 Firmware Upgrade

Retevis RT84 is a solid built, dual-band DMR/Analog handheld transceiver that would be a good entry-level radio. It has a hefty feel and slightly larger size,low cost under $95USD.  Today let’s learn how to do RT84 firmware upgrade. Enter DFU mode Press the top sidekey and PTT together, turn on the radio.  The indicator will flash red…