All this work is due to efforts from RedmiDevs founding members. They did the full device bring-up.

What is GSI? – GSI means Generic System Image. It is a general system image meant for no particular device. Treble enabled Android devices have a capability to run GSI. For more information and download link for GSI check this link.

Xiaomi Redmi 4A Hardware vs. Treble Implementation

Xiaomi Redmi 4A is an A-only Android device. This means that regarding the GSI images used, you need to get ARM64 and A-only system images.

How to Install Project Treble ROM on Redmi 4A & 5A

Before starting the installation procedure, keep in mind that we are not responsible for bricked devices or corrupted SD cards. You are doing all the steps on your own risk.

• Reboot your Android device into Recovery (You can use TWRP or CWM). Here you can download TWRP for Redmi 4A: https://androidfilehost.com/?fid=674106145207489212
• Format: System, Data, and Cache.
• Install the Treble flashable zip package. Here you can find the direct download link. The zip contains:
  • Kernel (a boot image)
  • Custom Partition (a compressed vendor image)
• Install the GSI system image you want to use. Here you can find more info on how to flash a generic system image (GSI) on Project Treble supported devices: https://www.xda-developers.com/flash-generic-system-image-project-treble-device/
• Reboot your device.

Important Notes

• The current minimal (required) firmware version is MIUI 8.3.29 Global Dev. If you are using an older version you may experience installation problems. Here you can download the latest dev package directly from Xiaomi. Flash it prior installing LineageOS. Alternatively, you can download and install one of the newest custom packages containing firmware only. Keep in mind that you are doing this on your own risk.
• G-Apps can be flashed on clean installs only.
• Formatting data (all user data including the internal storage) is obligatory, if MIUI was previously installed and the Android device was encrypted.

Working Features

• VoLTE (AOSP ROMS don’t have the needed patches to get it working. However, most other GSI ROMS have them)
• Camera (with and without flashlight)
• Audio (Playback and Record)
• Telephony (Data and Calls)
• Video Playback
• Bluetooth
• Sensors
• Wi-Fi
• GPS

Known Bugs

• Encryption when coming from a non-treble ROM does not work. That’s why you need to remove encryption when coming from a non-treble ROM.
• Wi-Fi Mac Address is randomly generated. You will keep it the same as long as you are on LineageOS.
• Sepolicy is permissive.

Version 2.0 Changelog

We now have a 2.0-version available, which is unified with Redmi 5A. Here are the main improvements.

• Included new power-off charging animations (it can show percentage)
• Updated Camera to the latest CAF tag
• Updated Kernel to the latest CAF tag
• Fixed call issues over Bluetooth
• Updated screen off gestures
• Added a full RGB LED

The post Project Treble ROM for Xiaomi Redmi 4A & 5A (Unified) appeared first on Xiaomi Firmware.

Calibrate screen auto brightness and proximity sensor on Xiaomi smartphones

Ok, so let’s begin with the method. I’ll try to describe each step as clear as possible:

1. Turn off your smartphone.
2. Press and hold “Volume Up” button, keep holding it and press “Power” button at the same time.
3. Release both buttons after short vibration signal.
4. At this point you should see a special menu on the screen. Most probably it will be on a Chinese language.
5. To change the menu language, find and tap on “中文” button, it is located in the right bottom column, near the “download模式” button.
6. Now we will proceed with auto brightness calibration. Find and tap on “Sensor test” > “Proximity sensor”. If the touch screen isn’t working use the “Volume” buttons to navigate and press “Power” to enter.
7. Now it is necessary to place the phone horizontally on any flat surface. The light sensor should be opened, even better if you can also wipe it with a cloth.
8. Make sure that there’s no bright light on the phone.
9. Now press “Calibration” button.
10. After calibration process is completed, you’ll see “Successfully” message on the screen.
11. Now you can reboot into system and test your new settings.

This actually helped me to fix the sensor on my own Redmi 4X. Did this guide worked for you? Ask questions and share your results as well as other methods in the comments below.

The post How to fix auto brightness on Redmi 4A appeared first on Xiaomi Firmware.

Download MIUI 9 and MIUI 8 Redmi 4A Modems

How to install modem on Redmi 4A?

1. Download the required modem for your device.
2. Boot into TWRP Custom Recovery.
3. Install downloaded .zip archive without wipes.
4. Reboot into system.
5. Don’t forget about backups!

Redmi 4A (Rolex) MIUI 9 7.8.28 v044 modem: MODEM_V044_rolex.signed.zip

Redmi 4A (Rolex) MIUI 8 Global Stable 8.5.1.0 v043 modem: MODEM_V043_GLOBAL.signed.zip

Update:

Pay attention that you must install the corresponding modem version for your Android system, for ex. Android 6 modems won’t work on Android 7 Nougat ROM.

Android 7 Modems for Redmi 4A (Rolex)

8.5.10.0 Global Stable: MODEM_V013_7.1.2_rolex.signed.zip

7.12.21 Global Developer: MODEM_V003_7.12.21.signed.zip

7.11.16 Global Developer: MODEM_V003_7.1.2_rolex.signed.zip

Android 6 Modems for Redmi 4A (Rolex)

7.10.26: MODEM_V047_rolex.zip

8.5.7.0: MODEM_V046_rolex.global.signed.zip

7.10.12: MODEM_V046_rolex.signed.zip

7.8.28: MODEM_V044_rolex.signed.zip

8.5.1.0: MODEM_V043_GLOBAL.signed.zip

The post [Download] Modem Files for Redmi 4A (Rolex) appeared first on Xiaomi Firmware.

Remember, it’s always recommended to use the latest ROM version on your device.

Download latest 8.5.1.0 MIUI Global Stable ROM For Redmi 4A

Global ROM comes with pre-installed Google Application, free of Chinese bloatware and includes huge amount of available languages (Chinese, English, Russian, German, French etc…)

Redmi 4A Global Stable ROM 8.5.1.0 / Recovery / System: Download

Redmi 4A Global Stable ROM 8.5.1.0 / MiFlash / fastboot: Download

Download latest Global Developer MIUI ROM for Redmi 4A

Redmi 4A Global Developer ROM 7.5.25 / Recovery / System: Download

Download China Stable ROM 8.5.2.0 for Redmi 4A

Available languages: English & Chinese

Redmi 4A China Stable ROM 8.5.2.0 / Recovery / System: Download

Redmi 4A China Stable ROM 8.5.2.0 / MiFlash / fastboot: Download

Download China Developer ROM 7.6.10 for Redmi 4A

Available languages: English & Chinese

Redmi 4A China Developer ROM 7.6.10 / Recovery / System: Download

Redmi 4A China Developer ROM 7.6.10 / MiFlash / fastboot: Download

Download Drivers and Tools for Redmi 4A

• MIUI ROM Flashing Tool (MiFlash) / 2016.12.22.0 / Download
• MIUI ROM Flashing Tool (MiFlash) / 2016.08.30.0 / Download
• MIUI ROM Flashing Tool (MiFlash) / 2016.04.01.0 / Download

• Mi Unlock | 1.1.1111.11231 | Download
• Mi Unlock | 2.2.406.5 | Download
• Mi Unlock | 2.2.624.14 | Download

• QDLoader HS-USB Driver | 32/64-bit | Download

• Platform-tools (adb/fastboot) | r.26.0.0 | Windows | Download
• Platform-tools (adb/fastboot) | r.23.1.0 | Windows XP Support | Download
• Platform-tools (adb/fastboot) | r.26.0.0 | Linux version | Download
• Platform-tools (adb/fastboot) | r.26.0.0 | macOS version | Download

• Minimal ADB and Fastboot | 1.4.2 | Setup | Download
• Minimal ADB and Fastboot | 1.4.1 | Portable | Download
• 15 seconds ADB Installer | 1.4.3 | Download

• HashTab | Download | Tool for checking MD5 hash of downloaded files
• USBDeview | Download x64 / Download x86 | Tool for checking the list off all USB devices with the possibility of their removal from the system

The post [Download] Redmi 4A 8.5.1.0 MIUI8 Global ROM appeared first on Xiaomi Firmware.

Download Full HD Wallpapers for Xiaomi Redmi 4X

Download full package here!

The post Wallpapers for Xiaomi Redmi 4X / 4A / Prime appeared first on Xiaomi Firmware.

Guides and Top Tips for Redmi 4, Redmi 4X, Redmi 4A & Redmi Prime

How to Unlock Redmi 4X Bootloader with Mi Unlock

Before unlocking your Redmi 4X / 4A / 4 device you’ll need to request official unlock permission.

1. Sign into your Mi-Account – “Setting” > “Mi Account”.
2. Start your device in fastboot mode (turn off, press and hold “Power” and “Volume down” button, after short vibration signal release the “power” button and wait for the fastboot logo to appear.
3. Now connect your device to PC.
4. Download Mi Unlock tool (check out Redmi 4X drivers post). Unpack downloaded archive into new folder on your PC or laptop.
5. Start Mi Unlock and press “Agree” to continue.
6. Enter your Mi Account credentials and click on “Sign In” button. You should use the same account you’ve previously signed in on your phone!
7. Now press “Unlock” button.
8. Wait until you see a “Unlocked successful” message. Now press “Reboot phone” and wait until your device reboots in system.

How to check Redmi 4X bootloader lock state?

1. Download Platform-tools (adb/fastboot) and unpack downloaded archive into new folder on your PC or laptop.
2. Start your device in fastboot mode (turn off, press and hold “Power” and “Volume down” button, after short vibration signal release the “power” button and wait for the fastboot logo to appear. Connect your phone to PC or laptop.
3. Open the folder with adb/fastboot files, hold “Shift” button and right click on the empty space, select “Open command window here”.
4. In the command prompt enter the following command:

   Fastboot devices
   Fastboot oem device-info

• Device unlocked: true – bootloader is unlocked
• Device unlocked: false – bootloader is locked

How to flash MIUI ROM on Redmi 4x

Flash locked bootloader Redmi 4X / 4A / Prime with MiFlash

1. Disable disable driver signature enforcement (read more here).
2. Download MiFlash (Redmi 4X drivers & Tools) and install. Confirm drivers installation!
3. Download Redmi 4X MIUI ROM for MiFlash / fastboot and unpack downloaded ROM into “C:\rom” folder.
4. Open MiFlash and select folder with unpacked ROM files. In MiFlash select “Flash all” or “clean all” option.
5. Boot your device in EDL / Download mode.
6. Let Windows install all drivers. In “Device Manager” your device should be found in “Ports (COM & LPT)” and recognized as Qualcomm HS-USB QDLoader 9008 (COMX). In case you see Relink HS-USB QDLoader 9008 (COMX) device, then manually delete this drivers and reconnect your device in EDL / Download mode (first turn on your device by holding “Power” button until vibration signal). In case it doesn’t help, right click on device in “Device Manager” > “Update drivers” > “Search for drivers on this PC” > “Select from installed drivers” > “Qualcomm HS-USB QDLoader 9008 (COMX)”.
7. In MiFlash press “Refresh”. In “Device” tab you should see the same COM port number as in “Device manager”.
8. Press “Flash” button and wait until installation process is completed. Usually it takes around 5 minutes.

In case of error you may try different version of MiFlash. If it doesn’t help either, then try connecting your device to another USB port and use another PC if possible.

How to flash from China 8.1.x.0 or later

1. Download 8.0.3.0 MIUI ROM Recovery / System and copy to phone root memory.
2. Open the “Updater” app, tap on “three dots” icon and select copied ROM .zip archive. If you’ve stuck with verification errors try renaming the file to update.zip.
3. All data and personal settings will be deleted!
4. Confirm with terms and wait for the system to start.
5. Turn off your device, press “Power” and “Volume Up” buttons, after vibration release the “Power” button.
6. In the menu select “download”.

How to downgrade Redmi 4X to 8.0.5.0 MIUI ROM

1. Turn off your phone.
2. Hold both volume buttons and connect your device to PC.
3. After vibration signal, release volume buttons. Nothing should appear on the screen after vibration. If your device just reboots, try turning off your device, then connect it to PC while pressing both volume buttons at the same time. After vibration release both buttons.

How to flash unlocked bootloader Redmi 4X with fastboot

1. Download Platform-tools (adb/fastboot) and unpack downloaded archive into new folder on your PC or laptop.
2. Download Redmi 4X MIUI ROM for MiFlash / fastboot and unpack to the folder with adb/fastboot.
3. Start your device in fastboot mode (turn off, press and hold “Power” and “Volume down” button, after short vibration signal release the “power” button and wait for the fastboot logo to appear. Connect your phone to PC or laptop.
4. In the folder with the adb/fastboot files, run flash_all.bat, wait until device reboots and then disconnect from PC.

How to flash TWRP Custom Recovery on Redmi 4X

1. Download Platform-tools (adb/fastboot) and unpack downloaded archive into new folder on your PC or laptop.
2. Download TWRP for Redmi 4A and unpack downloaded archive into folder with adb/fastboot files. In downloaded archive replace twrp.img with TWRP version for your device.
3. Start your device in fastboot mode (turn off, press and hold “Power” and “Volume down” button, after short vibration signal release the “power” button and wait for the fastboot logo to appear. Connect your phone to PC or laptop.
4. In the folder with adb/fastboot files, start “flash_twrp.bat” and wait for TWRP to start. Disconnect your device from PC.
   • If you’re installing TWRP without flashing new ROM. Confirm system partition modification if TWRP asks for it.
5. In TWRP: Go to “Advanced” > “Disable Verify” (or install SuperSU 2.65, if your want to have root on your phone).
6. “Reboot” > “System”.

After SuperSU installation, it’s recommend it to update it via Google Play. This will help you to get rid of ADB, PTP, MTP and USB hot-spot issues.

How to update TWRP on Redmi 4X / 4A / Prime

Here’s a method on how to update via currently install TWRP Custom Recovery version:

1. Connect your device to PC or laptop and copy fresh TWRP version to phone MicroSD or internal memory. Disconnect your device.
2. Boot into TWRP Custom Recovery, select “Install” > “Install Image” > select TWRP .img file > select “Recovery” partition > wait until installation process is completed.
3. “Reboot” > “Recovery”.

How to update TWRP on Redmi 4X via fastboot

The process is similar to flashing TWRP. Simply rename the new downloaded TWPR Custom Recovery image to twrp.img and replace it in the  adb/fastboot folder.

How to flash Custom ROM on Redmi 4X

It’s recommended to copy downloaded custom ROM version to MicroSD card. Allow system partition modifications if required by TWRP Custom Recovery.

1. Boot into TWRP Custom Recovery.
2. Go to “Wipe” > “Advanced Wipe” > Select all partitions, except MicroSD and OTG.
3. “Reboot” > “Recovery”.
   • In case you’ve stuck on Mi logo hold “Power” and “Volume Up” buttons, after short vibration, release the “Power” button and wait for TWRP to start.
4. Select language in TWRP.
5. Download custom ROM for your device. Download Custom ROM for Redmi 4X here.
6. Connect your device to PC and copy downloaded ROM archive as well as SuperSU 2.65 archive to phone MicroSD or internal memory, if you want to have root on your phone.
7. “Reboot” > “Recovery”.
   • In case you’ve stuck on Mi logo hold “Power” and “Volume Up” buttons, after short vibration, release the “Power” button and wait for TWRP to start.
8. In TWRP menu tap on the “Install” button > select custom ROM you want to install, also add SuperSU .zip archive if you want to enable ROOT, select reboot into system after flashing.
9. Wait until installation is finished.

Don’t forget to update SuperSU via Google Play after installation. This will help you to get rid of ADB, PTP, MTP and USB hot-spot issues.

How to root Xiaomi Redmi 4X / 4A / Prime

1. Download Platform-tools (adb / fastboot) and unpack the archive into an empty folder on your PC or laptop.
2. Download this archive and unpack it into the same folder with the adb / fastboot files.
3. Boot your device into the fastboot mode (turn it off, hold down the “Power” button and “Volume Down”, after the vibration signal, release the power button and wait for the fastboot logo to appear).
4. Connect Redmi 4X to a PC / laptop.
5. In the folder with the adb / fastboot files, start boot_twrp.bat and wait for the TWRP launch. TWRP will not be installed, only loaded for a single time. Confirm system partition modification if TWRP asks for that.
6. Download and copy SuperSU 2.65 archive into phone internal memory or MicroSD.
7. Disconnect your device from PC.
8. In TWRP menu press “Install” and select SuperSU archive and select “Reboot after install” option. Wait until installation process is finished.
9. In this script “Boot image patcher” is included, no need to patch boot with “Disable Verify”.
10. After installation of SuperSU, go to Google Play and update it. This will help you to get rid of issues with ADB, PTP, MTP and USB hot-spot.

Check out this post on how to enable root on Redmi 4X for more methods.

How to install GApps on China Stable Redmi 4X / 4A / Prime

1. Download Platform-tools (adb / fastboot) and unpack the archive into an empty folder on your PC or laptop.
2. Download this archive and unpack it into the same folder with the adb / fastboot files.
3. Boot your device into the fastboot mode (turn it off, hold down the “Power” button and “Volume Down”, after the vibration signal, release the power button and wait for the fastboot logo to appear).
4. Connect Redmi 4X to a PC / laptop.
5. In the folder with the adb / fastboot files, start boot_twrp.bat and wait for the TWRP launch. TWRP will not be installed, only loaded for a single time. Confirm system partition modification if TWRP asks for that.
6. Download and copy GApps archive into phone internal memory or MicroSD.
7. “Reboot” > “Shutdown”.
8. Boot your device into the fastboot mode (turn it off, hold down the “Power” button and “Volume Down”, after the vibration signal, release the power button and wait for the fastboot logo to appear).
9. Connect Redmi 4X to a PC / laptop.
10. In the folder with the adb / fastboot files, start boot_twrp.bat and wait for the TWRP launch. TWRP will not be installed, only loaded for a single time. Confirm system partition modification if TWRP asks for that.
11. Select “Install” > Select .zip archive with “GApps” > Reboot after install > Wait until installation is completed.

Just in case here you may find a tutorial on how you can unbrick Redmi 4X if something goes wrong. Also, pay attention, that author of this tutorial is not responsible for any of your actions with your phone! Make sure you’ve completely understand what you’re doing.

The post Redmi 4X Complete User Guide appeared first on Xiaomi Firmware.

Download and install TWRP 6.0 on Redmi 4A

Download link: cofface_recovery_redmi4A_test.img (31.3 MB)

Install via adb by typing this commands:

fastboot flash recovery cofface_recovery_redmi4A_test.img
fastboot boot cofface_recovery_redmi4A_test.img

Source: http://en.miui.com/thread-416783-1-1.html

Download Stock Recovery for Redmi 4A

Here’s a download link for Stock Recovery from Official Global 8.1.4.0 MIUI ROM.

Download link: recovery_stock.img (24.7 Mb)

The post [Download] TWRP 6.0 for Xiaomi Redmi 4A appeared first on Xiaomi Firmware.

Restore bricked Redmi 4A in diagnostic mode

First, read the guide carefully and then decide if you need to do something.

1. Connect test-points on your device and then connect it to PC via USB-cable.
2. Without opening test point press and hold “Power” button for 10-15 seconds.
3. Disconnect test points and check if your device is identified on your PC.
4. Disconnect from PC.
5. Press “Power” and “Volume down” button, the device should start in fastboot mode. Connect your Redmi 4A to PC with connected test points (phone will remain in fastboot mode), now press and hold “Power” button again for 10-15 seconds. Fastboot logo should disappear. Now disconnect test points and device should be identified as 9008. You can now continue with restoring your Redmi 4A smartphone.

On other Xiaomi device models you can try using Deep Flash cable. Follow the same steps, but simply replace “test points” with Deep Flash cable. Also, your device can automatically exit fastboot mode and turn on in case you’ve installed working ROM version.

The post How to restore Redmi 4A – Stuck in diagnostic mode appeared first on Xiaomi Firmware.

Rooting Redmi 4A – Complete Guide

1. Disable driver digital signature verification on yor PC. Enter the following commands in the command prompt:

   Bcdedit.exe set loadoptions DDISABLE_INTEGRITY_CHECKS
   Bcdedit.exe set TESTSIGNING ON

2. Restart your PC.
3. Install the QDLoader HS-USB Driver and ADB Driver Lite.
4. Unpack Platform-tools (adb/fastboot) in the “C:\adb” folder.
5. Boot your device into fastboot mode (press and hold “Volume down” + “Power” button.
6. Connect your device to PC via USB cable.
7. Open the command prompt from “C:\adb” folder.
8. Check if bootloader on your device is unlocked with the following command:

   fastboot oem device-info

9. If you see “Device unlocked: true” – the bootloader is unlocked. If you see “Device unlocked: false”, that means the bootloader is locked. To unlock the bootloader on Redmi 4A you should first request official permission from MIUI.
10. Now download and flash TWRP Custom Recovery (TWRP .img file should be in the “C:\adb” folder).

    Fastboot erase recovery
    Fastboot flash recovery cofface_recovery_redmi4A_test.img
    Fastboot boot cofface_recovery_redmi4A_test.img

11. Device will reboot into TWRP Custom Recovery.
12. TWRP will probably be in Chinese language. Press the button on the right and select English language. Swipe to confirm.
13. In TWRP, MTP mode is turned on by default. Download SuperSU v2.65 and copy to phone internal memory or SD card.
14. In TWRP press “Install” and select SuperSU archive. Swipe to confirm installation.
15. After installation is completed, select “Reboot into system”.
16. First startup will take around 5 minutes.
17. Enjoy root on your awesome Redmi 4A device!

The post [Guide] How to root Xiaomi Redmi 4A appeared first on Xiaomi Firmware.

Step-by-step guide on how to flash MIUI ROM on Redmi 4A

First steps and required drivers for Redmi 4A

1. Download and install ADB Driver Lite
2. TWRP Recovery.
3. SuperSU for root (optionally)
4. ADB/Fastboot utilities
5. Downloaded ROM .zip file for recovery.

Full pack: Redmi4a.zip

How to backup your Redmi 4A device

There are many ways on how you can backup Xiaomi Redmi 4A device. We are going to describe one below.

To backup contacts, SMS, calls, calendar and etc. you can use Super Backup SMS & Contacts application. Root is not required. You can download it from Play Market.

Flash Redmi 4A via Recovery

1. Enable developer options. Open “Settings” > “About” > and tap 7 times on “MIUI version” until you’ll see notification that you’re now a developer.
2. Now go to “Settings” > “System” > “Additional settings” > “Developer options” and enable “OEM Unlock” and “USB Debugging”.
3. Turn your device in fastboot mode. Turn off, then press “Volume Down” + “Power” buttons at the same time, release the buttons after short vibration signal and wait until fastboot logo appears.
4. Connect your device to PC.
5. Check the Xiaomi Redmi 4A bootloader status via ADB tools. If the bootloader is locked, request official unlock permission and unlock Redmi 4A with Mi Unlock tool. If you’ve got unlocked bootloader, continue to the next step.
6. Now flash TWRP Custom Recovery. Download Redmi4a.zip archive, unpack and run Flash-TWRP.bat. Follow instructions on the screen. If everything was done correctly, your device will automatically reboot into TWRP Custom Recovery. In TWRP, you’ll probably need to change language to English.
   • Press the second button on the third line to enter TWRP settings > Press the globe icon > Change language to English.
7. Disconnect your device from PC.
8. Boot into TWRP Custom Recovery again.
9. Go to “Wipe” > “Advanced” and select all partitions, except Micro SD Card.
10. Reboot into recovery.
11. Install downloaded ROM version. Go to “Install” > select ROM .zip file. In case you want to enable root, also install SuperSU. Swipe to confirm. Wait until installation is completed.
12. Reboot into system. First startup will take longer than usual.

The post [Guide] How to flash Xiaomi Redmi 4A via Recovery appeared first on Xiaomi Firmware.