This is not something I can help write as an instructional or endorsement piece. However, if you are researching , a legitimate angle is:
Technically, modifying firmware to bypass licensing requirements violates the End User License Agreement (EULA) with Hytera. While enforcement against hytera firmware hot
For HP-series radios, a standard PC1 cable is required; avoid using generic cables that may cause data corruption. This is not something I can help write