Redmi Note 4 (Qualcomm / codename mido) is a legendary budget phone from 2017, famous for its rock-solid Snapdragon 625 processor and massive custom ROM community. If your device is plagued by persistent lag, Wi-Fi drops, or an unstable battery, reverting to the official stock MIUI can be the most reliable fix. This page provides official fastboot ROMs for the Chinese and Global variants of the Redmi Note 4 (mido), a debloated Xiaomi.eu ROM, and trusted TWRP recovery files for modding.
Important: The Redmi Note 4X (Global) is the same device as the Redmi Note 4 (Qualcomm/India). Do not confuse it with the Mediatek-powered Redmi Note 4 (nikel). Always ensure your codename is mido before flashing any file.
Quick Device Specs
- Device: Redmi Note 4 (Qualcomm) / Note 4X (mido)
- Release year: 2017
- Chipset: Qualcomm Snapdragon 625
- Display: 5.5″ IPS LCD, 1080p
- Battery: 4100 mAh
- Original OS: Android 6.0, MIUI 8
- Final Official MIUI: MIUI 11 (Android 7.0 Nougat)
Required Downloads
| File / Tool | Download Link |
|---|---|
| Xiaomi Mi Flash Tool | Download Latest Version |
| Xiaomi USB Drivers | Official Android USB Drivers |
| Bootloader Unlock Tool | Official Mi Unlock Page (Mandatory) |
| ADB and Fastboot Tools | Download from Google |
Fastboot ROMs & Tools
| Type | Build / Version | Android | Release Date | Download | Size |
|---|---|---|---|---|---|
| China Stable (CN) | V11.0.2.0.NCFCNXM | 7.0 (Nougat) | 2019-11-07 | Download | ~1.8 GB |
| Global Stable | V11.0.2.0.NCFMIXM | 7.0 (Nougat) | 2019-11-07 | Download | ~1.8 GB |
| Xiaomi.eu (Custom) | V10.2.2.0.NCFCNXM | 7.0 (Nougat) | — | Download | ~1.1 GB |
| TWRP Recovery (Old) | 3.3.0-0425 (wzsx150) | — | — | Download | ~20 MB |
| TWRP Recovery (New) | 3.7.0_9-0 (Official) | — | — | Download | ~24 MB |
How to Flash via Fastboot (Mi Flash Tool)
- Unlock your bootloader using the official Mi Unlock tool. This is an essential first step.
- Extract the downloaded .tgz firmware file. You will get a folder containing the actual flashable ROM.
- Open Mi Flash Tool. Click Select and browse to the extracted ROM folder.
- Power off your phone. Boot into Fastboot mode by holding Volume Down + Power. Connect it to your PC.
- In Mi Flash Tool, choose the clean all option. Avoid “clean all and lock” if you plan to use custom ROMs.
- Click Flash and wait for the process to complete. The phone will reboot into the stock MIUI.
FAQs
Q1. Why is my Redmi Note 4 so slow and laggy?
Over time, flash memory degradation and app updates can cause significant slowdowns on older hardware. A clean flash of stock MIUI often restores snappiness. For a modern experience, consider a lightweight Android 11+ custom ROM like ArrowOS.
Q2. Does the Redmi Note 4 (mido) have Anti-Rollback (ARB) protection?
Yes, but it is generally considered safe for this device. The final MIUI 11 builds have a high ARB index (likely 4), making it impossible to accidentally downgrade to a dangerous version. Always check with fastboot getvar anti if unsure.
Q3. Which TWRP version should I use?
For flashing older MIUI-based ROMs (like the ones here), the older wzsx150 build (3.3.0) is proven stable. For flashing modern custom ROMs (Android 10+), use the official TWRP 3.7.0_9-0 for better compatibility.
Q4. My Wi-Fi and Bluetooth are disconnecting randomly. Can software fix this?
This is a very common issue on aging mido devices, often related to a failing Wi-Fi/BT ribbon cable housed in the back cover. While a software reflash can rule out OS corruption, the permanent fix is usually a physical replacement of this cheap component.
Troubleshooting
- “This MIUI version can’t be installed on this device”: You are trying to flash a ROM for the wrong region or codename. Double-check that you downloaded the correct file for “mido”.
- Stuck on Boot Logo: After flashing, perform a hard reset by booting into Stock Recovery (Volume Up + Power) and selecting “Wipe data”.
- Driver Issues on Windows 11: You may need to disable driver signature enforcement to install the correct Qualcomm drivers for Mi Flash Tool to work.
- Battery Not Charging: If a software reset doesn’t help, the issue is likely a worn-out battery, a common problem for a device of this age.
