HD1 is true-2-slot Dual Band Digital Radio, compliant with MOTOTRBO Tier Ⅰ&Ⅱ. The HD1 can operate many functions through the radio panel. Many hams are very interested in it and want to know how to upgrade HD1 firmware. Today, let us discuss how to upgrade the HD1 firmware.
What you need to do.
- Get one Ailunce HD1 digital radio.
- Get one programming cablefor HD1.
- Download HD1 firmware from official website: http://www.retevis.com/resources-center
Here’s how to do it.
Connect your HD1 with your PC using programing cable.
Holding the PTT and first side key at the same time, turn on HD1 to enter the DFU mode.
Open the firmware software, Click ”Connect”.
Click” Get Version” to get the firmware version.
Then click “Update”. It is going to begin the update of the firmware to your HD1.
The firmware update should complete successfully after several seconds.
Once all the steps are complete, power the radio off and then back on again. Now your HD1 should be good to go with the new firmware!