Upgrading to Android 10, 11, or 12 via custom ROMs without updating the underlying Xiaomi firmware creates a communication breakdown between the operating system and the network chip.
How to Fix Redmi Note 5 Pro Wi-Fi Issues: Full Guide and File Download
Use a file manager with root access (like Root Explorer) to navigate to /system/etc/wifi/ . Locate WCNSS_qcom_cfg.ini and open it with a text editor. Add or modify the following lines: redmi note 5 pro wifi fix file extra quality
Because Wi-Fi and Bluetooth share the same physical chip and persist configuration data on Qualcomm Snapdragon platforms, resolving a broken persist image using Method 2 will simultaneously fix any Bluetooth scanning failures.
Flashing fix files can sometimes require a factory reset. Backup all photos, contacts, and documents. Upgrading to Android 10, 11, or 12 via
Wi-Fi toggles instantly back to "off" when you try to turn it on. Wi-Fi MAC address shows 02:00:00:00:00:00 or "Unavailable".
: Check if a newer version of MIUI (up to MIUI 12 for this device) is available, as it may contain official bug fixes. Factory Reset : If the issue persists, a full factory reset through About phone Factory reset may clear corrupted system data. Advanced "Fix File" Procedures Add or modify the following lines: Because Wi-Fi
A QCN file contains your phone's unique radio configuration. Flashing a factory QCN file can restore lost IMEIs or fix baseband-related issues.
Before flashing system-level files, users often try these built-in fixes:
This is the cleanest method for users running custom ROMs who experience a greyed-out Wi-Fi switch. This package rewrites the necessary driver paths without altering your personal data.