WiFi Region Fix

Version 1.0
Author 4ekav0meow

Experimental KernelSU/Magisk-style module for Wi-Fi region issues on rooted Android systems where Wi-Fi country handling remains stuck on a restrictive region and 5 GHz support is incomplete.

What It Is

This module targets a specific class of issue where:

• Wi-Fi country code stays on CN
• 5 GHz support is only partial
• DFS channels such as 144 are missing
• normal prop edits are not enough to move the Wi-Fi stack away from CN

In the tested environments, applying this patch moved Wi-Fi country handling to PA and expanded the allowed 5 GHz channel set to include DFS channels including 144.

Tested On

• Device: Redmi Pad SE
• Codename: xun
• Firmware base: Oplus/ColorOS-based port
• Root environment: KernelSU
• Also confirmed by the author on at least one LineageOS-based system

Compatibility Summary

Confirmed working:

• Redmi Pad SE (xun) on an Oplus/ColorOS-based port
• at least one LineageOS-based rooted system

Best fit:

• rooted systems where cmd wifi force-country-code is available
• systems where Wi-Fi country handling can still be influenced from Android userspace
• devices with similar Wi-Fi framework behavior

May work:

• other Oplus/ColorOS-based ports
• other LineageOS-based systems
• similar rooted Android devices with matching Wi-Fi stack assumptions

Not considered universal:

• AOSP-based ROMs
• LineageOS-based ROMs
• Pixel-style ROMs
• Samsung firmware
• non-Oplus vendor stacks
• devices where vendor HAL or firmware hard-locks the regulatory domain

Important Warning

This is not a clean universal Wi-Fi fix.

The module is still device- and firmware-sensitive. It modifies boot-time behavior, rewrites Wi-Fi config values, and may affect more than just Wi-Fi on unsupported systems.

Use at your own risk.

What The Module Does

• sets region-related props to PA
• sets locale-related props to es-PA
• rewrites Wi-Fi country values in WifiConfigStore.xml
• restarts Wi-Fi after boot
• tries cmd wifi force-country-code enabled PA
• tries to disable obviously China-labeled overlays by simple name matching
• writes diagnostics into the module log directory

Files

• module.prop
• post-fs-data.sh
• service.sh
• README_GITHUB.md
• CHANGELOG.md
• LICENSE

Release Artifact

Current packaged module:

• wifi-region-fix-module-v1.0.zip

Before You Use It

• make sure you understand how to disable KernelSU/Magisk modules from recovery
• do not assume it is safe on unrelated devices
• do not assume it will fix vendor or firmware-level regulatory restrictions

Notes

If you want the full compatibility explanation, device-specific caveats, and risk details, read README_GITHUB.md.