Download Xiaomi Redmi 4X Firmware (santoni): Fix System Lag & Battery Drain
This guide provides the complete firmware collection for the Xiaomi Redmi 4X (santoni). 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 4X, featuring a Snapdragon 435 chipset and a 5.0-inch HD display, is a budget-friendly device known for its compact design and 4100mAh battery. Software issues can affect its performance, and this guide will help you resolve them. Note: This article is for the santoni codename (Redmi 4X), not to be confused with other Redmi models like Redmi 4 (markw) or Redmi Note 4X (mido).
⚠️ 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 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 4X (santoni). The santoni variant is specific to the Redmi 4X with the Snapdragon 435 processor, distinct from the Redmi 4 (markw, Snapdragon 430) or Redmi Note 4X (mido, Snapdragon 625).
- 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 4X (santoni)
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 santoni codename.
| Region | MIUI Version | Android | Release Date | Download Link |
|---|---|---|---|---|
| China (CNXM) | V11.0.1.0.NAMCNXM | 7.1 | 2019-10-22 | Fastboot ROM |
| Global (MIXM) | V11.0.2.0.NAMMIXM | 7.1 | 2019-11-07 | Fastboot ROM |
| EU (EUXM) | V10.3.1.0.NAMCNXM | 7.1 | Unknown | Recovery ROM |
TWRP Recovery for Redmi 4X (santoni)
To flash custom ROMs or perform advanced tasks, install the TWRP custom recovery specific to the Redmi 4X (santoni).
- TWRP Recovery: TWRP-3.6.2_9-0-santoni – Official TWRP image from TWRP’s site, recommended for compatibility with newer ROMs. For updates, check TWRP’s official site or XDA Forums.
How to Install TWRP:
- Download the TWRP .img file and rename it to
recovery.img. - Boot your Redmi 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., markw or mido), as it will brick your santoni device.
Recommended Custom ROMs
For users dealing with bloatware or seeking a smoother experience, the Xiaomi.eu ROM leverages the Redmi 4X’s Snapdragon 435 for a refined MIUI experience. Custom ROM support for santoni is moderate due to its budget hardware.
- Xiaomi.eu ROM: V10.3.1.0.NAMCNXM Based on Android 7.1 – Offers a lightweight, optimized MIUI experience with Google services.
- LineageOS: Check LineageOS or XDA Forums for unofficial builds like LineageOS 14.1 or 15.1 (Android 7.1 or 8.1). Support is limited, and features like the camera may not work fully due to the device’s age and hardware.
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 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 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 the provided TWRP-3.6.2_9-0-santoni 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 4X (santoni)
- Q1: Why does my Redmi 4X experience system lag? A: System lag can result from bloatware or heavy apps taxing the Snapdragon 435. Flashing the latest Global ROM (V11.0.2.0) or the Xiaomi.eu ROM can improve responsiveness.
- Q2: How can I fix battery drain on my Redmi 4X? A: Battery drain may stem from background processes or outdated firmware on the 4100mAh battery. Flashing a clean stock ROM or the debloated Xiaomi.eu ROM can optimize power efficiency.
- Q3: Will the Redmi 4X receive Android 8 or newer? A: The santoni variant is officially capped at Android 7.1 with MIUI 11. Custom ROMs like LineageOS 15.1 (Android 8.1) may be available on XDA, but support is limited, and features like the camera may not work fully due to the budget hardware.
- Q4: I flashed a ROM for markw or mido on my santoni 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 santoni Fastboot ROM (e.g., V11.0.2.0.NAMMIXM). Select “clean all” to restore the device. Seek help on XDA Forums if issues persist.
