How to flash Xiaomi Redmi Note 2: all the ways from official updates to custom firmware

Xiaomi Redmi Note 2 is the legendary smartphone of 2015, which is still used by many users. MIUI Official support for this device has long since ceased, meaning that owners have to update their firmware to get new features, fix bugs, or even resurrect the hover. In this article, we will analyze all the current ways of firmware Redmi Note 2 – from official updates through the Internet. MIUI Updater before installing custom firmware through TWRP.

It's important to understand that firmware is not only a way to update the system, it's also a tool for solving many problems: constant reboots, slow work, errors with the sensor or camera. However, the wrong actions can turn a smartphone into a brick. So we'll go into detail on the preparation of the device, choosing the right firmware and the nuances of each method. If you've never flashed a smartphone before, don't worry: the instructions are adapted even for beginners.

1. Firmware Preparation: What to Do Before Starting

Before you start firmware, there are a few critical steps that need to be taken, and neglecting them can cause all the data on the device to be lost or even completely inoperable, starting with the obvious: backup.

Backup all the important data: contacts, photos, messages and applications.

• 📱 MIUI Backup (built-in solution): Settings → Additionally. → Backup and reset → Local backup
• ☁️ Cloud services: Google Drive, Mi Cloud or Yandex.Disk for photos and documents
• 💻 Manual copying on PC through MTP (Put your phone on like a flash drive)
• 🔧 Titanium Backup (requires root) to save data applications

Pay special attention to unlocking the bootloader. On the Redmi Note 2, it is locked by default, and without unlocking you will not be able to install custom recovery or firmware. The process takes up to 72 hours (due to Xiaomi's validation) and requires:

• 📧 Linking the Mi Account to the device
• 🔗 Internet connection (necessarily via SIM-map)
• 🖥️ Installation of Mi Unlock Tool on PC

Also check:

• 🔋 Battery charge – at least 60% (better than 100%)
• 🔌 Cable USB — Use an original or quality substitute
• 🖥️ Drivers - install Mi PC suite ADB Windows driver

⚠️ Note: If your Redmi Note 2 was purchased in China (the domestic version), the firmware version is global. MIUI This can cause problems with the modem (no network). → The phone. → Version. MIUI.

2. Official methods of firmware: MIUI Updater and Fastboot

If you don't plan on installing custom firmware, the official methods are the most secure and don't require unlocking the bootloader (except through Fastboot). Let's look at both.

Update via MIUI Updater (OTA)

The easiest way is to update "over the air" (OTA). He's a good fit if:

• 📲 You have an official firmware installed. MIUI
• 🔄 The system is not damaged and is loading normally.
• 🌐 There is a stable connection to Wi-Fi

Instructions:

1. Open Settings → About the phone → System update
2. Click Check for Updates
3. If the update is available, download it (weight usually) 1.5-2 GB)
4. After downloading, click Reboot and install

If the update is not available, try:

• 🔄 Reboot the phone
• 📶 Connect to another Wi-Fi network
• 🕒 Wait 24 hours (sometimes updates roll out gradually)

Firmware via Fastboot (MiFlash)

This method is suitable for:

• 🔧 Restore the brick (if the phone is not turned on)
• 📥 Installation of official firmware from scratch
• 🔄 Downgrade on an older version MIUI

It will require:

• 🖥️ Windows PC
• 🔌 Cable USB (better-than-original)
• 📁 Firmware in.tgz format (download from the official website)
• 🛠️ MiFlash (last version)

Step-by-step:

1. Unpack the firmware in a folder without Cyrillic characters (for example, C:\Redmi_Note_2_fastboot)
2. Turn off your phone and press Volume Down + Power to log into Fastboot
3. Connect your phone to your PC
4. Launch MiFlash, press Select and select the folder with firmware
5. Press Refresh – your device should appear in the list
6. Select Clean All or Clean All and Lock (if you want to lock the bootloader again)
7. Press Flash and wait until it's over (5-10 minute)

Downloaded the official firmware for Redmi Note 2|

Drivers installed ADB and Fastboot|

Phone's 100-charged%|

The bootloader is unlocked (if you stitch the caste)|

Data backup made.-->

⚠️ Note: If after firmware through Fastboot phone is stuck on the logo MI, Try re-swipe with the Clean all and lock option. If that doesn't work, you'll need custom recovery.

Installation of custom firmware: TWRP and LineageOS

Official support for Redmi Note 2 has long been discontinued, but enthusiasts continue to produce custom firmware.

• 📱 LineageOS (Android 7-10) — stable firmware with minimalist interface
• 🔧 Pixel Experience – firmware with pure Android and features from Google Pixel
• 🎭 MIUI third party developers (e.g, MIUI 12 from Xiaomi.eu)

To install custom firmware will require:

1. Unlocked loader
2. Established custom recovery TWRP
3. Firmware in.zip format
4. GApps (if not included in the firmware)

Installation TWRP Recovery

Instructions:

1. Download the latest version TWRP Redmi Note 2 (codenamed hermes) from the official website
2. Rename the file to recovery.img and put it in a folder with ADB
3. Enable USB Debugging in Settings → For Developers
4. Connect your phone to your PC and execute commands: adb reboot bootloader fastboot flash recovery recovery.img fastboot reboot
5. Immediately after the reboot, press the Volume up. + Food to enter TWRP

3.2. Firmware through TWRP

When TWRP is installed, you can start the firmware:

1. Copy firmware and GApps (if needed) on your phone or flash drive
2. In TWRP, select Wipe → Advanced Wipe and select Dalvik / ART Cache System Data Cache

Install

Specify the path to the firmware file and swipe for installation

GApps

Reboot System

The first start can take 10-15 minutes – don’t interrupt the process!

💡

If the mobile network does not work after installing custom firmware, try to flash modem and non-hlos files from the official firmware via Fastboot separately.

4. Solving common firmware errors

Even if you follow the instructions accurately, you can get errors, and let's look at the most common problems and their solutions.

If your problem is not described in the table, try:

• 🔍 Finding a solution in forums 4PDA or XDA Developers
• 📥 Download firmware from another source (sometimes files are corrupted when downloading)
• 🔧 Try another firmware method (for example, instead of using the TWRP use the Fastboot)

5. How to return the official firmware after custom

If experiments with custom firmware were not successful or you want to return the warranty (if it is still valid), you can roll back to the official version of the contract. MIUI. For that:

1. Download the official firmware in.tgz format for Redmi Note 2 from the Xiaomi website
2. Unpack the archive in a folder.
3. If you are established TWRP, Download it and run the full Wipe (as in Section 3.2)
4. Connect your phone to your PC and run the official firmware through MiFlash (Clean All and Lock Mode)
5. If the bootloader has been unlocked, it will be blocked again.

After that, the phone will return to factory status with the official firmware.

• 🔒 All data will be deleted.
• 🔄 Possible downgrade on an older version MIUI
• 📱 Some features of custom firmware (for example, ViPER4Android) stop working

6. Optimization of the embroidered Redmi Note 2

After successful firmware (especially custom firmware), it is recommended to perform several actions to improve performance and stability:

Performance adjustment

• 🔋 Enable Battery Optimization for Critical Applications in Settings → Battery
• 🎮 For gamers: activate Performance Mode in Settings → Additionally. → Special facilities
• 🗑️ Clear the cache through Settings → Memory. → Cleanup

Installation of useful modifications

Additional tweaks are available for custom firmware:

• 🎵 ViPER4Android — Improved sound (requires Magisk)
• 📶 Network Signal Guru – Enhancing the network signal
• 🔋 AccA - fine-tuning battery consumption

For their installation:

1. Install Magisk via TWRP
2. Download modules in.zip format and install them via Magisk Manager
3. Reboot the phone.

💡

Castom firmware based on Android 10+ can work slower official due to the weak hardware Redmi Note 2. the Optimal choice is LineageOS 16 (Android 9) or MIUI 10 from Xiaomi.eu.

7. Alternative methods: firmware through EDL Test Point

If Redmi Note 2 is completely “bricked” (does not respond to buttons, is not determined in Fastboot), there is a last chance – firmware through the Internet. EDL (Emergency Download Mode: This method requires:

• 🖥️ Special cable. EDL (or the closing of Test Point)
• 🛠️ MiFlash or QFil Programs
• 📁 Firmware in.mbn or.bin format

It's a complicated and risky process, and if you make a mistake, you can damage your phone, and if you're not sure about your skills, you should go to a service center.

1. Take your phone apart and find Test Point (usually next to the headphone jack)
2. Close the contacts and connect. USB-plug-in
3. In Device Manager should appear Qualcomm device HS-USB QDLoader 9008
4. Start MiFlash and run the firmware in mode EDL

⚠️ Attention: Firmware through EDL drop off IMEI and MAC-After the procedure, they'll have to be manually restored through the QCN-File or Engineering Menu (#4636##).

FAQ: Frequent questions about the Redmi Note firmware 2