Xiaomi Redmi Note 4X on w3bsit3-dns.com: firmware, modifications and life hacks from the community

Xiaomi Redmi Note 4X is a legendary smartphone that remains relevant even after years thanks to an active community of enthusiasts on 4PDA. This device, released in 2017, became one of the most discussed on the forum: from custom firmware to hardware upgrades. But why are thousands of users still looking for information using this particular model? It's all about the unique combination of price, performance and the possibility of deep customization.

On 4PDA hundreds of topics dedicated to Redmi Note 4X - from instructions for unlocking the bootloader to discussions of alternative operating systems like LineageOS or Pixel Experience. However, it is easy for a beginner to get lost in the flow of information: outdated guides, conflicting advice and the risks of “bricking” the device. In this material, we have structured all the most important things: where to look for the latest firmware, how to avoid common mistakes, and which modifications are really worth attention.

Technical characteristics of Redmi Note 4X: why is it still in demand

The smartphone is equipped with a processor Qualcomm Snapdragon 625 - a chipset that is famous for its energy efficiency and stability. Even today, this hardware is capable of handling modern tasks if the software is properly optimized. Basic equipment included:

• 📱 Display: 5.5" Full HD (1920×1080), IPS, brightness up to 450 nits
• 🔋 Battery: 4100 mAh (removable!) with fast charging support
• 📷 Main camera: 13 MP (Sony IMX258) with phase detection autofocus
• 💾 Memory: 3/32 GB or 4/64 GB (microSD support up to 256 GB)

The key advantage of the model is support two SIM cards + microSD simultaneously, which is rare even in modern smartphones. In addition, Redmi Note 4X became one of the latest Xiaomi with infrared port to control equipment.

Despite the release of newer models, Note 4X remains in the top discussions on w3bsit3-dns.com due to two factors: openness to modification And iron reliability. For example, its Snapdragon 625 is still considered one of the most stable chipsets for custom firmware.

Where to look for firmware for Redmi Note 4X on w3bsit3-dns.com: trusted sources

The 4PDA forum is a treasure trove of information, but also a minefield for beginners. The main topic on firmware for Redmi Note 4X (codename mido) is located at the link 4pda.to/forum/.../showtopic=777777 (check the current topic ID). However, before downloading, please note:

• 🔄 MIUI version: global (Global), Chinese (China) or European (EU)
• 🔓 Bootloader status: unlocked or locked
• 📦 Firmware type: official, custom (AOSP), ported
• 🛠️ Modifications: with pre-installed GApps, without Google services, etc.

One of the most popular options is firmware MIUI Pro from the user ingbrzy, which offers advanced settings and optimizations for mido. Also in demand Pixel Experience for those who want pure Android.

⚠️ Attention: Firmwares marked "For testing" or "Alpha" may contain critical bugs. For example, in some builds LineageOS 19 for Note 4X The camera module on the base does not work Google Camera.

Before installing any firmware, check its compatibility with your device version. To do this:

1. Go to Settings → About phone → MIUI version
2. Compare the build number with the firmware requirements
3. Make sure the version Android (6.0, 7.0, 9.0, etc.) supported

Make a backup of your data via TWRP|Check the battery charge (at least 60%)|Download the correct firmware version for your region|Make sure you have an unlocked bootloader-->

Unlocking the bootloader: step-by-step instructions without risks

Without an unlocked bootloader, you will not be able to install custom Recovery or alternative firmware. Xiaomi officially allows unlocking, but the process has nuances. You will need:

• 🖥️ Computer with Windows (for Mi Unlock Tool)
• 🔌 Original USB cable (not all cables support fastboot mode)
• 📱 Mi account linked to the device (required!
• ⏳ Patience: Waiting for approval may take up to 720 hours (30 days)

Step-by-step algorithm:

1. Download Mi Unlock Tool from the official website.
2. Turn it on on your phone Developer Mode (7 taps per Build number in Settings → About phone).
3. Activate OEM unlocking And USB Debugging in the developer menu.
4. Link your Mi account to your device in Settings → Xiaomi Account → Mi Cloud.
5. Reboot your phone into fastboot (press Power + Volume down).
6. Connect your device to your PC and launch Mi Unlock Tool.

⚠️ Attention: If you see the message "Couldn’t unlock"After 50% progress, it means that 720 hours have not passed since the first account linking. Xiaomi is artificially delaying the process to reduce the number of bricked devices.

After successful unlocking you will be able to install TWRP Recovery — a tool for backups and custom OS firmware. Official version of TWRP for mido can be downloaded at twrp.me.

bcdedit /set nointegritychecks on

Top 5 custom firmware for Redmi Note 4X from w3bsit3-dns.com

The w3bsit3-dns.com community offers dozens of builds, but we have selected the most stable and functional options for mido:

1. Pixel Experience (Android 12) - pure Android with chips from Pixel. Suitable for those who are tired of MIUI. Minus: possible bugs with the camera.
2. LineageOS 18.1 — lightweight and fast firmware based on Android 11. Ideal for extending the life of the device.
3. MIUI Pro by ingbrzy - deeply modified MIUI with advanced settings and optimizations.
4. Havoc-OS — firmware with a huge number of customizations (themes, animations, gestures).
5. CrDroid — a balanced build with an emphasis on performance and battery life.

Each firmware has its own characteristics. For example, Pixel Experience requires separate installation Open GApps (version nano or pico), whereas in MIUI Pro Google services are already integrated.

Before installing any firmware necessarily make a backup via TWRP! To do this:

1. Boot into TWRP (Power + Volume up).
2. Select Backup → mark sections Boot, System, Data.
3. Save the backup to microSD or send it to your PC via MTP.

Hardware upgrade: what can be improved in Redmi Note 4X

One of the key advantages Note 4X — possibility of upgrading components. The following modifications are actively discussed on w3bsit3-dns.com:

• 🔋 Battery replacement: original BM47 (4100 mAh) can be replaced with BM4B (4000 mAh) from Redmi Note 5 with support for fast charging.
• 📷 Camera upgrade: installing the module from Redmi Note 5 Pro (12 MP, Sony IMX486) requires resoldering of the cable, but gives a noticeable increase in quality.
• 💾 Replacing memory: Can be upgraded from 32 GB to 64/128 GB by replacing the eMMC chip (requires soldering skills).
• 📡 Improved communication: replacing the antenna module with a more sensitive one (for example, from Mi A1).

The most popular upgrade is replacing the battery. The original battery loses up to 30-40% of its capacity after 3-4 years. The following options are recommended on w3bsit3-dns.com:

Battery model	Capacity	Compatibility	Price (approx.)
BM47 (original)	4100 mAh	100%	1500-2000 ₽
BM4B (from Note 5)	4000 mAh	Yes, with fast charging	1200-1800 ₽
Green Cell	4400 mAh	Yes, but may not support fast charging	1000-1500 ₽

⚠️ Attention: When replacing the battery with a non-original one, problems with charge calibration may occur. For example, a phone may show 100% when the real value is 80%. Solved by recalibration through the engineering menu (*#*#4636#*#*).

To replace the camera you will need:

1. Buy module from Redmi Note 5 Pro (about 2000-2500 ₽ on AliExpress).
2. Resolder the cable or use an adapter (sold on w3bsit3-dns.com in the topic "mido camera upgrade").
3. Install modified software for the camera (for example, GCam with config for IMX486).

How to check the originality of the battery?

The original Xiaomi battery has:

1. Hologram with the Mi logo on the label.

2. Serial number, which can be checked on the website mi.com/verify.

3. Clearly printed inscriptions without errors (for example, “Made in China”, not “Made in Chana”).

Counterfeits often have blurry font or no hologram.

Solving common problems of Redmi Note 4X

Even after Years of use, Redmi Note 4X may encounter typical problems. Here are the most common ones and solutions:

• 🔋 Rapid battery drain: The cause is often battery wear or background activity of applications. The solution is to replace the battery or install Greenify to hibernate applications.
• 📶 Poor network signal: check the integrity of the antenna contacts (often oxidize). Replacing the Wi-Fi/Bluetooth module (chip) will also help BCM4356).
• 🔊 Sound distortion in dynamics: Usually caused by dust getting into the speaker. The solution is to blow with compressed air or replace the speaker (part number 1605-00011).
• 📱 Spontaneous reboots: Most often caused by unstable firmware or processor overheating. Check the temperature via AIDA64 and replace the thermal paste if necessary.

One of the most annoying problems is "scorching" after unsuccessful firmware. If your phone won't turn on or respond to buttons, try:

1. Clamp Power + Volume down for 10-15 seconds to force a reboot.
2. Connect to PC and try to flash via Mi Flash Tool in mode EDL (Xiaomi authorized account required).
3. If it doesn’t help, contact the service for flashing via Test Point.

⚠️ Attention: When flashing firmware via EDL, there is a risk of losing IMEI! Always make a backup of your partition nvram before manipulation. You can restore IMEI through the engineering menu (*#*#36446337#*#*), but you will need a backup.

To diagnose iron, we recommend using:

• AIDA64 — to check temperature, processor load and sensor information.
• AccuBattery — to monitor the battery condition.
• GFXBench — for testing the graphics subsystem.

Comparison of Redmi Note 4X with other Xiaomi models

Despite his age, Redmi Note 4X still competes with newer budget Xiaomi smartphones. Let's compare it with popular alternatives:

Main advantage Note 4X before newer models - removable battery And active support for custom firmware. For example, for Redmi Note 7 There are practically no stable builds LineageOS due to problems with camera drivers.

On the other hand, POCO M2 Pro offers a more modern processor and a larger screen, but its proprietary firmware and lack of a removable battery make it less repairable.

FAQ: answers to frequently asked questions about Redmi Note 4X