How to flash Xiaomi Redmi 7A: official and custom firmware

Why do you need to use Redmi 7A and what are the risks?

Xiaomi Redmi 7A is a budget smartphone of 2019, which is still popular due to the reliability and support of MIUI. However, over time, even it begins to slow down, quickly discharge or lose security updates.

Official updates via MIUI Updater are usually safe, but if you decide to install custom firmware (like LineageOS or Pixel Experience), the risks increase. Incorrect actions can lead to a "brick" (complete device failure), loss of IMEI or sensor problems. Especially careful is to unlock the bootloader - this erases all data and resets the settings to factory.

In this article, we will discuss three main ways of firmware: through a standard update, Recovery and Fastboot, and you will also learn how to avoid typical errors and what to do if something goes wrong. 7A It is stable and is compatible with the current version. MIUI — You may not need firmware, but if it's slowing down, overheating, or not getting it. OTA-updates, read on.

Preparation for firmware: what to do before the start

Before you start firmware, follow the mandatory preparatory steps, which minimizes risks and simplifies the process.

• 📱 Check the device model: go to Settings → The phone. → Make sure you have a Redmi. 7A (It's a codename, pine, not a Redmi 7 or some other modification, and a firmware from another model will cause a failure!
• 🔋 Battery charge at least 60%: firmware can take up to 30 minutes, and if the device turns off in the process, the consequences will be dire.
• 💾 Create a backup: Use Settings → Additionally. → Backup and reset or third-party utilities such as TWRP (If already installed, save contacts, photos and app data.
• 🔓 Unlock the bootloader (if you need Fastboot): Official firmware through Recovery doesn’t require unlocking, but for custom or manual Fastboot it’s a must.

Also prepare your computer (for Fastboot): install Mi Flash Tool and ADB drivers, download the archive with firmware from the official Xiaomi website or verified sources (for example, XDA Developers). Firmware from unofficial sites may contain malicious code or be modified - use them at your own risk.

⚠️ Note: If you are flashing a device with an unlocked bootloader, it may require re-assignment of your Mi Account after the upgrade!

Method 1: Officially Updated via MIUI Updater

The easiest and safest method is to upgrade over the air (OTA) or through the built-in Software Update app.

• 📲 You need to update to the latest official version. MIUI.
• 🔄 The device gets OTA-Updates, but you missed them.
• 🛡️ You don’t want to risk data or unlock the bootloader.

Instructions:

1. Open the Software Update app (the icon with the arrow up).
2. Click Update Checker. If the update is available, download it.
3. After download, press Reboot and Update. The device will install the firmware itself and restart.

If the update is not available, but you know that your model has it, download the full package (.zip) from the official website and select the Software Update → Three → Select a firmware file. This method is called “update through Recovery without going to Recovery” – the device will unpack and install the firmware.

⚠️ Note: If after the update the device stuck on the logo MI, Wait 10 to 15 minutes. Sometimes the first download takes a long time!

💡

Officially OTA-updates do not reset data or require unlocking the bootloader, but they may not be available for older regions (e.g. global firmware for the Chinese model).

Method 2: Firmware through Recovery (stock or TWRP)

If OTA-Update is not available or you want to install a specific version MIUI, You can flash the device through Recovery:

• 🔄 Recoiling on the previous version MIUI.
• 📦 Manually downloaded firmware installations.
• 🛠️ Recovery after failure (if the device is loaded into Recovery).

To start, download the firmware in.zip format from the official website. It is important to choose the correct version:

Instructions for stock recovery:

1. Move the downloaded.zip firmware file to the root directory of internal memory (not to folders!).
2. Turn off the device, then press Volume up + Power to enter Recovery.
3. Select the language (if you have an option), then Install update.zip to System.
4. Confirm the installation and wait until it's finished. Once the reboot is complete, the device will be stitched.

If you have TWRP installed, the process is similar, but with additional options (for example, the ability to backup before firmware).However, remember: TWRP is not officially supported for the Redmi 7A, and its installation requires unlocking the bootloader.

Method 3: Fastboot (Mi Flash Tool)

Fastboot is the most reliable method for recovering a brick-and-brick device or installing an official firmware from scratch, USB-cable and unlocked bootloader:

• 🔧 The device does not turn on or is stuck on the logo.
• 📥 You need to “clean” the system from viruses or debris.
• 🔄 Requires a change of firmware region (for example, from Chinese to global).

Step-by-step:

1. Download the Mi Flash Tool from the official website and install it on your PC. Also download the firmware in.tgz format (for Fastboot) and unpack it.
2. Turn off Redmi 7A and press Volume Down + Power to enter Fastboot mode. Connect the device to your PC.
3. Launch the Mi Flash Tool, press Select and point the path to the unpacked firmware.
4. At the bottom, select firmware mode: Clean all – complete cleaning (recommended when changing region); Clean all and lock – cleaning + lock bootloader (only for official firmware!); Save user data – data storage (not always stable).

Flash

If the Mi Flash Tool is a bug, check:

• 🔌 Connection to USB (Try another cable or port).
• 🖥️ Drivers installed ADB and Fastboot (you can download through the SDK Platform Tools by Google).
• 🔓 If the bootloader is unlocked (if not, do it via Mi Unlock Tool).

⚠️ Note: If you flash a device with a locked bootloader through Fastboot, it can turn into a brick!

Unlocking the bootloader: a step-by-step guide

Without unlocking the bootloader, you won’t be able to flash Redmi 7A through Fastboot or install custom Recovery.The process takes up to 72 hours (due to Xiaomi’s policy) and requires a Mi Account account to be linked.

What you need:

• 📱 Charged smartphone >60% and included debugging by USB (Settings → The phone. → Version. MIUI — Press 7 times, then return to Settings → Additionally. → For developers → Debugging by USB).
• 💻 Computer with Mi Unlock Tool and drivers installed ADB.
• 🔗 Mi Account tied to the device (be sure to remember the login and password!).

Instructions:

1. Download Mi Unlock Tool from the official website and unpack the archive.
2. Turn off Redmi 7A, then press Volume Down + Power to log into Fastboot. Connect to PC.
3. Launch it. miflash_unlock.exe on behalf of the administrator and log in to your Mi Account.
4. The program will check to unlock. If the device is supported, press Unlock.
5. Wait until it is completed (it can take up to 3 days due to Xiaomi restrictions).

Once unlocked, a warning will appear every time the device is turned on, This device is unlocked. This is normal and does not affect work, but some features (such as Mi Pay or Find Device) may stop working.

1. Connect to another USB-port (preferably) USB 2.0).

2. Use another Mi Account (sometimes helps).

3. Wait 3-7 days and try again (Xiaomi limits the frequency of unlocks).-->

Resolving errors after firmware

Even if the firmware is successful, there may be problems, and here are the most common ways to solve them:

If the IMEI is missing after the firmware, try to restore it through the engineering menu:

1. Type on the keyboard ##4636##.
2. Go to Phone Information and check for IMEI.
3. If IMEI is not available, use utilities like Maui META or SN Write Tool (requires an EFS backup).

If the device does not determine SIM-Check if the region of the firmware matches your region. SIM. For example, Chinese firmware may not support Russian operators.

FAQ: Frequent questions about Redmi firmware 7A