Xiaomi Redmi 5, released in early 2018, is still a popular device due to its good value for money. However, as time goes by, official support for the model has ceased, leaving users on older versions of Android without security updates and new features. The only way to breathe new life into the device is to install custom firmware or the official global version through a computer.
The process of replacing software with Redmi 5 requires careful and accurate follow-up, as any errors can lead to the failure of the gadget. In this article, we will discuss in detail the preparation, selection of the optimal version of the software and the process of flashing using a PC, which is the most reliable method of restoring or updating the system.
You don’t have to be an IT expert to handle this task, but a basic understanding of how the file system and Windows interface work will take place. We’ll look at all the steps from unlocking the bootloader to finalizing the system so you can safely upgrade your Redmi 5.
Preparation of equipment and choice of firmware
Before you start any manipulations with the system partition of the device, you need to make sure that you have all the necessary components. USB-cable (preferably original or high-quality) and a Windows computer, and it is also critical to charge the device battery to at least 60% to avoid power outages at the most critical time.
The next step is to find and download the right firmware file. Redmi 5 has a lot of versions: global (Global), Chinese (China), Indian (India) and custom builds from independent developers. The official firmware is divided into Recovery (to update via the phone menu) and Fastboot (for firmware via PC), we need the latter with the.tgz extension.
You should only download files from trusted sources, such as the official website miui.com or authoritative forums like 4PDA and XDA Developers. The use of corrupted or modified files by unknown persons can lead to malware or unstable communication modules.
⚠️ Warning: Make sure the firmware you choose is for the Redmi 5 (codename ros) model. 5A (riva is guaranteed to turn your device into a brick».
Once the archive is loaded, it needs to be unpacked. It is important that the path to the firmware folder does not contain Cyrillic characters or spaces, since the firmware tools may not properly process the path. C:\MIUI_Ros_Global_Fastboot.
Unlocking the loader: a mandatory stage
Xiaomi installs bootloader protection on all its devices, which prohibits installation of unofficial software or flashing through Fastboot without special permission. For Redmi 5, this procedure is mandatory if you plan to change the firmware region (for example, from China to Global) or install custom Recovery.
The unlocking process takes time and requires you to link your Mi Account to your device. You need to log in to your phone's settings, select the Developer section, and activate the Factory Unlock. After that, the phone will request a Mi acc binding, and only after a certain period of time (usually 7 to 168 hours) will the server allow the unlock.
- 🔓 Download the official Mi Unlock Tool from the site en.miui.com/unlock.
- 📱 Put the debugging on. USB and permission to factory unlock in the developer menu.
- ⏳ Wait for the waiting timer set by the Xiaomi server to expire.
- 💻 Launch Mi Unlock on PC, log in to your account and connect your phone in Fastboot mode.
It is worth noting that unlocking the bootloader leads to the complete removal of all user data from the device. This is a security measure, so before starting the procedure, be sure to back up important contacts, photos and documents.
⚠️ Note: After unlocking the bootloader, some security features may be limited, such as banking applications may fail, and photo quality may be reduced in some conditions due to changes in camera signal processing.
If the waiting timer has expired, Mi Unlock will show the Unlock button, pressing it will start a process that will take about 10-30 seconds, and after successful completion, the phone will automatically restart and clear the data, which is normal system behavior.
Installation of drivers and software
Successful communication between the computer and the smartphone Redmi 5 You need to install the right drivers, and without them, the PC won't be able to recognize the device in bootloader mode, and the flasher will give you a connection error. HS-USB QDLoader 9008 standard ADB/Fastboot driver.
It is recommended to use a comprehensive set of drivers, which often comes bundled with firmware utilities or available on developer forums. When you connect your phone in Fastboot mode (clamping the volume button when turned on), a device called Xiaomi Android Fastboot should appear in Windows Device Manager.
If a device is identified as “Unknown Device” or has a yellow exclamation point, you must manually update the driver through Device Manager, indicating the path to the driver folder.
The main tool for the firmware will be the Mi Flash Tool. This is the official software from Xiaomi, which allows you to download system images to the memory partitions of the phone. Download the latest stable version of the tool, as older versions may not work properly with new versions of Windows 10 or 11.
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If the Mi Flash Tool can’t see your phone, try using another one. USB-port (preferably) USB 2.0) or replace the cable. Sometimes installing drivers in Windows 7 compatibility mode helps.
The process of firmware through the Mi Flash Tool
Now, to the most critical step, which is directly recording data to your smartphone memory, launch the Mi Flash Tool on behalf of the administrator. In the program interface, click select and specify the path to the unpacked firmware pack where the images file and the launch script are located.
Put Redmi 5 into Fastboot mode by slamming the volume button and connecting the cable to your PC. The Fastboot logo should appear on the phone screen with a picture of a rabbit repairing an android. In the Mi Flash program, the device serial number will appear on the top menu, indicating a successful connection.
☑️ Checklist before firmware
At the bottom of the program window, you will see three options: clean all, save user data, and clean all and lock.
| Firmware mode | Description of action | Risks and characteristics |
|---|---|---|
| clean all | Complete data cleanup and installation of a new system | Safe, all data will be deleted |
| save user data | Updating the system with saving files | Errors are possible if the firmware region changes |
| clean all and lock | Cleaning, installation and re-locking of the loader | Only for global firmware on global devices |
After selecting the mode, press the flash button. The process will take 200 to 500 seconds. At this time, it is strictly forbidden to turn off the cable or interrupt the computer. The progress bar will display the status of the execution of operations for each memory partition.
What to do if there is a Flash Error error?
When the process is complete, the Result column will display a success message, and the phone will automatically reboot, and the first download after flashing can last up to 5-10 minutes, as the system optimizes applications and creates new configuration files.
Solving common problems and errors
Although seemingly simple, the process can run into technical hurdles, and one of the common problems is the Missmatching image and device error, which occurs when you try to flash firmware from another model or region that is incompatible with the current status of the bootloader.
Another common situation is the Mi logo hanging (bootloop) which can mean that the firmware is not correct or the data partition is damaged, in which case it helps to re-rout the firmware with clean all mode or clear partitions through Recovery mode.
- 🔄 Try using another one. USB-cable or port, preferably on the back of the PC.
- 💻 Reinstall Qualcomm drivers and ADB, Deleting the old versions completely.
- 📂 Make sure that the path to the firmware does not contain Russian letters and spaces.
- 🔋 Check the battery charge, as at low voltage, the power controller can block the recording.
If the phone stopped responding to buttons and did not enter Fastboot mode, it may have gone into EDL (Emergency Download Mode) mode, in which case you will need to disassemble the device to close test points on the board or use a special cable to enter this mode programmatically.
It is important to understand that software failures are often solved by repeating the procedure, but hardware damage (e.g., an eMMC memory malfunction) requires intervention at the service center.
Primary system setup and optimization
After successfully booting the new system, you will be greeted by the welcome screen. At this stage, it is important to properly configure the basic parameters to ensure the stable operation of Redmi 5. Don’t rush to restore all applications from backup at once, it is better to configure the system from scratch for maximum performance.
First, check the Android version and security level in the About Phone section, make sure that the version of MIUI you planned to install is displayed, and then you should turn off the ads on the system, as in some regions of the firmware it may be present by default.
To optimize the battery, which on Redmi 5 has a capacity of 3300 mAh, it is worth limiting the background activity of rarely used applications. Go to the battery settings, select the application and set the power saving mode No restrictions only for messengers, and for the rest, select Limit background activity.
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Proper initial setup and the refusal of instant recovery of all backups significantly increase the stability of the re-stitched smartphone.
Also worth paying attention to the sensor and screen calibration, if you notice inaccuracies in the touchscreen, the engineering menu (call ##64663##) has tests to check and calibrate the hardware.
Regularly updating installed apps through Google Play and cleaning the cache in a timely manner will help keep Redmi 5 performance high even years after the device is released.