# UV-K5: an open reimplementation of Quan Sheng firmware v2.1.27

> An archived reimplementation of the Quan Sheng UV-K5 handheld-radio firmware v2.1.27. After the submodules are fetched, make writes firmware.bin and firmware.packed.bin for the radio’s DP32G030.

- Type: Case study
- Targets: Firmware
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-03
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/DualTachyon/uv-k5-firmware>
- Primary source: <https://github.com/DualTachyon/uv-k5-firmware/blob/6f8afac8864e0349ecf8b10f91ce8f69273013db/README.md>
- Catalog page: <https://awesomerea.org/resources/uv-k5-firmware-case/>
- Record JSON: <https://awesomerea.org/resources/uv-k5-firmware-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/uv-k5-firmware-case/index.md)

## Requirements & limits

- **Scope:** The repository is archived. It reimplements Quan Sheng UV-K5 firmware v2.1.27 without customizations and recommends arm-none-eabi GCC 10.3.1.
- **Testing evidence:** Fetch submodules, then run make. The build targets cortex-m0 and produces firmware.bin for k5prog and firmware.packed.bin for the official updater.
- **License:** LICENSE is the Apache License, Version 2.0.

## Primary sources

1. <https://github.com/DualTachyon/uv-k5-firmware/blob/6f8afac8864e0349ecf8b10f91ce8f69273013db/README.md>
2. <https://github.com/DualTachyon/uv-k5-firmware/blob/6f8afac8864e0349ecf8b10f91ce8f69273013db/Makefile>
3. <https://github.com/DualTachyon/uv-k5-firmware/blob/6f8afac8864e0349ecf8b10f91ce8f69273013db/version.c>
4. <https://github.com/DualTachyon/uv-k5-firmware/blob/6f8afac8864e0349ecf8b10f91ce8f69273013db/LICENSE>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.