This article will give you a guide on where to find Ailunce HD1 resources. 

Download software, firmware, USB Driver: https://www.ailunce.com/Support/HD1/Software 

Find User manual, Brief introduction PDF here: https://www.ailunce.com/Support/HD1/UserManual

Download DMR contacts at the end of this page: https://www.ailunce.com/ResourceCenter 

Learn how to upgrade firmware: https://www.ailunce.com/blog/upgrade-hd1-firmware 

Ailunce HD1: Manual Operation / Front Panel Programming (FPP) Instructions.

how to restore the factory default settings.

Ailunce HD1 very detailed introduction and Basic operation.

Operation Keys and shortcut keys

FFP: Program HD1 to Connect FM repeater without PC

Set a unique boot screen for Ailunce HD1

How to import digital contacts into Ailunce HD1

Ailunce HD1 Promiscuous function