This is a special gift for the Chinese Amateur Radio Festival, and it includes support for the QuanSheng UV-K5/K6/5R in the DTrac app. Now you can control the UV-K5/K6 to synchronize with satellite Doppler frequencies in real time through the app. The corresponding custom firmware is also released.
For instructions on how to install a Bluetooth module, please refer to this guide: https://forum.hamcq.cn/d/535/4
Custom firmware
The customized firmware was slightly modified on top of the latest egzumer firmware, while fully preserving its original functionality.
Firmware download address: https://www.dtrac.cn/lib/exe/fetch.php?media=firmware.packed.zip
Brief overview of flashing method: Long press the PTT key to power on, and use the official QuanSheng firmware update software provided by QuanSheng to update.
App Settings

Demo video
https://www.dtrac.cn/lib/exe/fetch.php?media=dtrac_quansheng_uvk6.mp4