Download Xiaomi Redmi Note 4 / Redmi Note 4X Firmware (mido): Fix System Lag & Battery Drain
This guide provides the complete firmware collection for the Xiaomi Redmi Note 4 / Redmi Note 4X (mido). If you’re experiencing system lag, battery drain, or a bricked device, our verified download links and detailed flashing instructions will help you restore your phone’s functionality. The Redmi Note 4 / Note 4X, featuring a Snapdragon 625 chipset and a 5.5-inch FHD display, is a popular mid-range device known for its reliable performance and 4100mAh battery. Software issues can affect its efficiency, and this guide will help you resolve them. Note: This article is for the mido codename (Redmi Note 4 / Note 4X with Snapdragon 625), not to be confused with other Redmi models like Redmi Note 4 (nikel, Mediatek) or Redmi 5 (rosy).
⚠️ Essential Pre-Flash Checklist
Flashing can lead to errors if not done correctly. Complete this checklist to ensure a smooth process. All data will be wiped, so a backup is critical.
- ✅ Full Data Backup: Save photos, contacts, and files to Mi Cloud, Google Drive, or a PC to prevent data loss.
- ✅ Charged Battery: Ensure your Redmi Note 4 / Note 4X has at least 60% battery to avoid interruptions during flashing.
- ✅ Windows PC: The Mi Flash Tool requires a Windows operating system.
- ✅ Original USB Cable: Use a high-quality USB cable for a stable connection to your PC.
- ✅ Unlocked Bootloader: Flashing requires an unlocked bootloader. Use the official Mi Unlock Tool (expect a 7-15 day waiting period).
- ✅ Required Software: Install the latest Mi Flash Tool and Xiaomi USB Drivers.
Understanding the Firmware: Types and Regions
Selecting the correct firmware is crucial to avoid bricking your Redmi Note 4 / Note 4X (mido). The mido variant is specific to the Redmi Note 4 / Note 4X with the Snapdragon 625 processor, distinct from the Mediatek-based Redmi Note 4 (nikel).
- Fastboot ROM (.tgz): A full factory image for Mi Flash Tool, ideal for unbricking or reverting to stock MIUI.
- Recovery ROM (.zip): Used with custom recoveries like TWRP for installing custom ROMs like Xiaomi.eu.
- Region Codes:
- CNXM: China version, optimized for local networks but may lack Google Play services.
- MIXM: Global version with Google services and multi-language support, often used in India and other markets.
- EUXM: Xiaomi.eu version, a debloated MIUI ROM with Google services and multi-language support.
Official Firmware Downloads for Redmi Note 4 / Note 4X (mido)
These firmware files are sourced from Xiaomi’s official servers or trusted repositories for reliability and security. Choose the latest version for your region to ensure optimal performance. Ensure you download ROMs for the mido codename.
| Region | MIUI Version | Android | Release Date | Download Link |
|---|---|---|---|---|
| China (CNXM) | V11.0.2.0.NCFCNXM | 7.0 | 2019-11-07 | Fastboot ROM |
| Global (MIXM) | V11.0.2.0.NCFMIXM | 7.0 | 2019-11-07 | Fastboot ROM |
| EU (EUXM) | V10.2.2.0.NCFCNXM | 7.0 | Unknown | Recovery ROM |
TWRP Recovery for Redmi Note 4 / Note 4X (mido)
To flash custom ROMs or perform advanced tasks, install the TWRP custom recovery specific to the Redmi Note 4 / Note 4X (mido).
- TWRP Recovery:
- TWRP-3.7.0_9-0-mido – Official TWRP image from TWRP’s site, recommended for compatibility with newer ROMs.
- TWRP-3.3.0-0425-REDMI_NOTE4X-CN-wzsx150 – Alternative TWRP build for mido. For the latest versions, check TWRP’s official site or XDA Forums.
How to Install TWRP:
- Download the TWRP .img file (from either provided link) and rename it to
recovery.img. - Boot your Redmi Note 4 / Note 4X into Fastboot mode (Volume Down + Power).
- Connect to your PC and open a command prompt.
- Flash TWRP by running:
fastboot flash recovery recovery.img. - Boot into recovery:
fastboot boot recovery.img.
Warning: Do not use a TWRP image for other devices (e.g., nikel or rosy), as it will brick your mido device.
Recommended Custom ROMs
For users dealing with bloatware or seeking a smoother experience, the Xiaomi.eu ROM leverages the Redmi Note 4 / Note 4X’s Snapdragon 625 for a refined MIUI experience. The mido variant has strong custom ROM support due to its popular hardware.
- Xiaomi.eu ROM: V10.2.2.0.NCFCNXM Based on Android 7.0 – Offers a lightweight, optimized MIUI experience with Google services.
- LineageOS: Check LineageOS or XDA Forums for official builds like LineageOS 18.1 (Android 11), providing a clean Android experience with excellent performance and regular updates.
- Pixel Experience: Check Pixel Experience or XDA for builds like Pixel Experience 11 (Android 11), offering a Google Pixel-like interface with enhanced features.
How to Flash: Step-by-Step Instructions
Choose the flashing method based on your firmware type: Fastboot for official .tgz files or Recovery for custom .zip files.
Method 1: The Fastboot Method (Official Stock ROMs)
- Unzip the Firmware: Extract the .tgz file using 7-Zip to obtain a folder with an “images” subfolder and flash scripts.
- Launch Mi Flash Tool: Open the Mi Flash Tool with administrator privileges on your Windows PC.
- Enter Fastboot Mode: Power off your Redmi Note 4 / Note 4X, then press and hold Volume Down + Power until the Fastboot logo appears.
- Connect to PC: Plug your phone into your PC using the USB cable.
- Load Firmware: In Mi Flash Tool, click “select” and choose the extracted firmware folder. Click “refresh” to detect your device.
- Choose Flash Option: Select “clean all” for a complete reset (recommended for stability). Avoid “clean all and lock” unless you’re certain of the ROM’s region compatibility.
- Start Flashing: Click “flash” and wait 5-10 minutes. Do not disconnect the phone.
Troubleshooting Tip: If Mi Flash Tool fails to detect your Redmi Note 4 / Note 4X, try reinstalling the Xiaomi USB Drivers or switching to a USB 2.0 port for better connectivity.
Method 2: The Recovery Method (Custom ROMs)
- Install TWRP: Ensure TWRP is installed using either the TWRP-3.7.0_9-0-mido or TWRP-3.3.0-0425 image.
- Transfer ROM: Copy the .zip ROM file (e.g., Xiaomi.eu) to your phone’s internal storage or an SD card.
- Boot into Recovery: Power off your phone, then press Volume Up + Power until the TWRP logo appears.
- Wipe Data: In TWRP, go to “Wipe” > “Advanced Wipe” and select Dalvik/ART Cache, Cache, and Data. Swipe to confirm.
- Install ROM: Return to the main menu, tap “Install,” select the .zip file, and swipe to flash.
- Reboot: Reboot to system after installation completes.
After the Flash: First Boot and Setup
The first boot after flashing may take 10-15 minutes as the system initializes. Don’t interrupt if it seems stuck on the Redmi logo. Once booted, follow the setup wizard and restore your data from your backup.
Device-Specific Q&A for the Redmi Note 4 / Note 4X (mido)
- Q1: Why does my Redmi Note 4 / Note 4X experience system lag? A: System lag can result from bloatware or heavy apps taxing the Snapdragon 625. Flashing the latest China/Global ROM (V11.0.2.0) or a custom ROM like LineageOS 18.1 can improve responsiveness.
- Q2: How can I fix battery drain on my Redmi Note 4 / Note 4X? A: Battery drain may stem from background processes or outdated firmware on the 4100mAh battery. Flashing a clean stock ROM or a debloated ROM like Xiaomi.eu or Pixel Experience can optimize power efficiency.
- Q3: Will the Redmi Note 4 / Note 4X receive Android 8 or newer? A: The mido variant is officially capped at Android 7.0 with MIUI 11. For Android 8.1 or newer, consider custom ROMs like LineageOS 18.1 (Android 11) or Pixel Experience 11, available on XDA or their respective sites, which leverage the Snapdragon 625 for smooth performance.
- Q4: I flashed a ROM for nikel or rosy on my mido device and it’s bricked. What do I do? A: If your device is in EDL mode (Qualcomm HS-USB QDLoader 9008), use Mi Flash Tool with the correct mido Fastboot ROM (e.g., V11.0.2.0.NCFMIXM). Select “clean all” to restore the device. Seek help on XDA Forums if issues persist.
