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egzumer/uv-k5-firmware-custom

Free

A merge between https://github.com/OneOfEleven/uv-k5-firmware-custom and https://github.com/fagci/uv-k5-firmware-fagci-mod

FreeFree tier
Type
Open Source
Visit Website GitHub (38 stars)

About egzumer/uv-k5-firmware-custom

A custom open-source firmware for Quansheng UV-K5, K6, and 5R v2.1.27 handheld radios. This repository merges the work of OneOfEleven (improved AM reception, long-press button functions, fast scanning, channel name editing) and fagci (spectrum analyzer, SSB demodulation) with additional enhancements by egzumer. Features include an AM fix for vastly improved reception quality, configurable button functions, battery percentage/voltage display, backlight dimming, better DCS/CTCSS scanning, LCD interference crash fix, and many more menu customizations. The firmware is intended for experienced users comfortable with flashing and willing to accept the risk of bricking the radio. A comprehensive manual is available in the project's Wiki.

Key Features

AM fix for improved reception quality
Long press button functions replicating F+ actions
Fast scanning with configurable behavior
Channel name editing in the menu
Channel name + frequency display option
Shortcut for scan-list assignment (long press 5 NOAA)
Scan-list toggle during scanning (long press * Scan)
Configurable button functions selectable from menu
Battery percentage and voltage on status bar
Backlight dimming with longer times

Pros & Cons

Pros
  • Significantly improved AM reception quality compared to stock firmware
  • Rich set of customizable features via menu (buttons, display, scanning)
  • Open source and actively maintained by the community
  • Includes spectrum analyzer and SSB demodulation for advanced use
  • Better battery management with selectable capacity and calibration
Cons
  • Use at own risk – can brick the radio if flashing fails or firmware is incompatible
  • No guarantee it will work on all units (especially different hardware revisions)
  • Requires technical knowledge to compile and flash the firmware
  • May have bugs or unfinished features (project is a work in progress)

Best For

Upgrading Quansheng UV-K5/K6/5R radios with improved firmwareAdding a spectrum analyzer and SSB demodulation to a handheld transceiverCustomizing button functions and display options for amateur radio operationEnhancing reception quality and reducing noise on Quansheng HTsExperimenting with open-source radio firmware modifications

FAQ

What radios are supported?
Quansheng UV-K5, K6, and 5R with firmware version v2.1.27.
Is installing this firmware safe?
Use entirely at your own risk. There is no guarantee it will work on your radio and it may brick it, requiring a replacement.
Where can I find the manual?
An up-to-date manual is available in the project's Wiki on GitHub.
Are there other similar forks I should look at?
Yes, the repository encourages checking other forks listed in the README for additional features and improvements.