Redmi Note 7 still remains one of the most talked about smartphones on 4PDA - despite the release of new models. This device has become a legend due to its balance of price, performance and customization options. The forum contains hundreds of topics with firmware, mods and instructions, but it can be difficult for a beginner to understand all this. In this article, we have structured all the key information: from choosing firmware to solving common problems.
Feature Note 7 - him modular architecture, which allows you to install both official MIUI and custom builds based on Android 10/11. But there are also pitfalls here: incorrect firmware can block the network, and errors when unlocking the bootloader can turn the phone into a “brick.” We'll tell you how to avoid these problems and maximize the potential of your device.
Official and custom firmware: what to choose?
On 4PDA There are three main types of firmware for Redmi Note 7 (lavender):
- 📱 Official MIUI - stable and global versions from Xiaomi (including MIUI EU without Chinese software). Suitable for daily use, but limited in settings.
- 🔧 Ported MIUI - modified assemblies with added functions (for example, MIUI Pro or SuperMIUI). They may contain bugs, but they offer unique features.
- 🤖 Custom firmware — LineageOS, Pixel Experience, Havoc-OS and others. Full control over the system, but require an unlocked bootloader and may lose some features (for example, a wide-angle camera).
For beginners, we recommend starting with official global firmware (MIUI Global Stable). It has been tested by Xiaomi and contains all the necessary certificates (including Widevine L1 for Netflix in HD). Advanced users should pay attention to MIUI EU — Chinese software has been removed, themes have been added and power consumption has been optimized.
- Official MIUI Global
- MIUI EU
- Custom (LineageOS/Pixel Experience)
- Ported MIUI (SuperMIUI, etc.)
- Other
Important: firmware for Redmi Note 7 Pro (violeta) are not compatible with conventional Note 7 (lavender)! Installing the wrong version will lead to loss of IMEI or complete inoperability of the modem.
How to unlock the bootloader: step-by-step instructions
Unlocking the bootloader (bootloader) is a mandatory step for installing custom firmware or root rights. Xiaomi officially allows you to do this, but the process has nuances:
- Link your account Mi Account with device in
Settings → Xiaomi Account → Mi Cloud. - Turn on
OEM UnlockinSettings → For Developers(if there is no item, wait 7 days after linking your account). - Download Mi Unlock Tool and log in to the program.
- Put your phone in mode
Fastboot(pressPower + Volume down) and connect to PC. - B Mi Unlock Tool click
Unlockand wait for it to complete (may take up to 720 hours to wait!).
Link Mi Account to device
Enable OEM Unlock in Developer Options
Download Mi Unlock Tool from the official website
Make sure ADB/Fastboot drivers are installed on your PC
Prepare a backup copy of your data (unlocking will reset the phone!)
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⚠️ Attention: After unlocking the bootloader it will work anti-recoil protection (Anti-Rollback). This means that you will not be able to downgrade to older firmware. MIUI 10.2.3.0 - otherwise the phone will turn into a “brick”. Always check the version Anti-Rollback before the firmware!
Comparison of Redmi Note 7 versions: which option is better?
Redmi Note 7 was produced in several modifications, which differ not only in memory capacity, but also in hardware. Here are the key differences:
| Model | Processor | Camera (main) | NFC | Color options |
|---|---|---|---|---|
| Redmi Note 7 (lavender) | Snapdragon 660 | 48 MP (Samsung GM1) | ❌ No | Black, blue, red |
| Redmi Note 7 Pro (violeta) | Snapdragon 675 | 48 MP (Sony IMX586) | ❌ No | Black, blue, red, white |
| Redmi Note 7S (lavender) | Snapdragon 660 | 48 MP (Samsung GM1) + 5 MP (depth) | ✅ Yes (Indian version only) | Black, blue, red |
For most users, the optimal choice is regular. Redmi Note 7 on Snapdragon 660. Note 7 Pro wins in performance and photo quality (thanks to the sensor Sony IMX586), but the difference in actual use does not always justify the difference in price. But Note 7S is of interest only to owners of the Indian version with NFC — this module is not available in other regions.
To check if NFC is available in your Redmi Note 7, enter the command in the engineering menu *#*#2664#*#* and look at the "NFC" line. If the value 1 - there is a module, 0 - absent.
Top 5 Redmi Note 7 problems and how to solve them
Even after years of use Note 7 typical “diseases” remain. Here are the most common ones and how to fix them:
- 🔋 Rapid battery drain - check background processes in
Settings → Battery. Applications with constant synchronization are often to blame (for example, Facebook or Mi Fit). Solution: Disable autorun for unnecessary applications. - 📶 Poor network signal - update the modem firmware via
Fastboot(files are available at 4PDA in the topic "Modems for lavender"). If the problem persists, check the antenna cable (it often comes off after a fall). - 🔊 Quiet speaker — clean the speaker grid from dust (you can use compressed air). If the sound is distorted, the membrane may be damaged (replacement is required).
- 📸 Artifacts in the photo - reset the camera settings to
Camera Settings → Restore Default Settings. If the problem is in the firmware, try it Google Camera with config for Snapdragon 660. - 🔄 Freezes and reboots - Unstable firmware is most often to blame. Return to
MIUI Stableor try a custom kernel (for example, FrancoKernel).
⚠️ Attention: If it disappeared after the update IMEI or the network has stopped working, don’t panic! This can be cured by restoration. NVRAM through SP Flash Tool (instructions and files are in the topic "Repair IMEI for Redmi Note 7" on w3bsit3-dns.com) Never use IMEI generators - it breaks the law!
Hidden features and tweaks for advanced users
Redmi Note 7 hides many features that are not enabled by default. Here are the most useful ones:
- 🔓 Unlock 4G on both SIMs — in the engineering menu (
*#*#4636#*#*) selectPhone Informationand installSet preferred network typeinLTE onlyfor both SIMs. - 🎮 Activating 60 FPS in games - add to
build.proplinedebug.sf.hw=1(root access required). Doesn't work in all games, but in PUBG Mobile And Call of Duty The FPS increase is noticeable. - 🔋 Disable charging limit - if the battery is worn out, MIUI artificially limits the charge to 80%. To remove the limit, delete the file
/data/bms/limit_charge(need root). - 📱 Hidden testing menu - enter
*#*#6484#*#*to check the display,*#*#64663#*#*- for sensor test,*#*#2664#*#*— for diagnosing hardware modules.
How to enable Dolby Atmos on Redmi Note 7?
1. Download Dolby Atmos mod for lavender (available on 4PDA).
2. Install via TWRP (needs unlocked bootloader).
3. Reboot your phone and turn on the effect in Settings → Sound → Dolby Atmos.
⚠️ Works only on firmware based on Android 10 and higher!
To use most tweaks you will need root rights. They can be obtained through Magisk after installing custom recovery (TWRP or OrangeFox). Installation instructions are in the topic "TWRP and Root for Redmi Note 7"on 4PDA.
How to extend battery life: tips from w3bsit3-dns.com
Battery Redmi Note 7 (4000 mAh) loses capacity over time, but this process can be slowed down. Here are proven methods:
- Limit charge to 80% - MIUI has a built-in function (
Settings → Battery → Battery status → Limit charge). This reduces battery wear by 30-40%. - Disable fast charging —
Quick Charge 4.0warms up the battery. Use regular charger (5V/2A) for everyday use. - Calibrate your battery once every 3 months: completely discharge the phone, then charge it to 100% without interruption.
- Control the temperature — do not use the phone on charge while playing games. Optimal battery temperature: 10–35°C.
If the battery is swollen, stop using the phone immediately! A swollen battery may cause a fire. Replace the battery at a service center (cost ~1500–2000 rubles).
Use the app to check your battery status AccuBattery or engineering menu (*#*#4636#*#* → Battery information). If the capacity drops below 70% from the original - it's time to think about replacement.
Where to download firmware and tools for Redmi Note 7?
All necessary files for Redmi Note 7 collected at 4PDA in dedicated topics. Here are the key links:
- 📥 Official MIUI firmware — topic on w3bsit3-dns.com (weekly updates).
- 🔧 Custom firmware — section with AOSP and GSI.
- 🔓 Unlock Tools — Mi Unlock Tool (Xiaomi official website).
- 🛠️ Drivers and utilities — ADB/Fastboot package And SP Flash Tool.
⚠️ Attention: Download firmware only from trusted sources! On third-party sites there are often modified assemblies containing viruses or spyware. On 4PDA all files are checked by moderators, but always check before installing MD5 hash with the one specified in the topic.
For convenience, use XiaomiTool V2 is a PC program that automatically detects your phone model and offers the latest firmware. You can download at this post.
FAQ: answers to frequently asked questions
Is it possible to install Android 12 on Redmi Note 7?
Yes, but unofficially. There are ported assemblies LineageOS 19 And Pixel Experience 12 based on Android 12, but they may be unstable (for example, the wide-angle camera or NFC does not work). For everyday use it is better to stay on Android 10/11.
How to return stock firmware if the phone does not turn on?
If the phone is able Fastboot (flashing Mi Bunny), flash the official firmware via Mi Flash Tool in mode Clean All. If the phone does not respond, you will need EDL mod (needs an authorized Xiaomi account). Instructions are in the topic "Restoring Redmi Note 7"on 4PDA.
Why doesn't the camera work after updating the firmware?
This is a typical problem when installing custom firmware. Solution:
- Make sure your firmware supports
Snapdragon 660(for lavender). - Sew separately vendor And firmware from stock firmware.
- Install Google Camera with the correct config (for example, BSG or Urnyx05).
If it doesn't help, go back to MIUI and check the camera operation there.
How to increase speaker volume?
Can be used Magisk modules like ViPER4Android or Audio Modification Library. Editing the file will also help mixer_paths.xml (need root). But be careful - turning up the volume too much may damage the speaker!
Where can I find original spare parts for Redmi Note 7?
Original spare parts (display, battery, camera) can be ordered:
- On AliExpress (sellers with a 98%+ rating and reviews of compatibility with lavender).
- At Xiaomi service centers (list at official website).
- On 4PDA in the topic "Spare parts for Redmi Note 7"(there are verified sellers there).
⚠️ Be careful with cheap analogues! Non-original batteries may swell and displays may have poor color reproduction.