Flashing Global ROM 8.1.2.0 on locked Redmi 4 Prime / Redmi 4 Pro

Ok, to begin with we will be downgrading our current ROM version (China Stable ROM 8.1.3.0 in this case) to V8.0.6.0.MBECNDG. Let’s continue!

Downgrading Redmi 4 Prime / Pro to MIUI 8 China Stable V8.0.6.0

1. Download China Stable V8.0.6.0.MBECNDG ROM from official MIUI website: download here
2. Connect your device to PC and create a new folder on your phone internal memory, name it something like “mirom” and copy downloaded 8.0.6.0 China Stable ROM to this folder.
3. Connect to any available WiFi network and open “Updater” app. Now tap on the (…) three dots icons in the top bar and select “Choose update package” > Next find the previously created folder “mirom”, select downloaded 8.0.6.0 China Stable ROM and press OK.
4. Flashing of China Stable ROM 8.0.6.0 should start, your device will be reboot and all data will be deleted.
5. At this point you should have China Stable ROM 8.0.6.0 installed on your Redmi 4 Prime / Pro device.

Preparing to flash Global ROM 8.1.2.0 on Redmi 4 Prime

Below you’ll find everything that is required before we start flash Global ROM 8.1.2.0.

• Make sure to disable driver signature enforcement on your PC
• Download and install MiFlash 2016.12.14.1: MiFlashSetup201612141.msi
• Download 8.1.2.0 Global Stable ROM for MiFlash and extract it in C:\anyfoldername (do not use any Cyrillic symbols and try to make folder name as short as possible).
  • 8.1.2.0 Global Stable ROM for Redmi 4 Prime: Download link
• Download and install QDLoader HS-USB Driver (32/64-bit): Download link
• Download and install 15 seconds ADB Installer: Download link
• Download and install Mi PC Suite: MiSetup3.2.1.3111_2717.exe

Flash Global ROM 8.1.2.0 on Redmi 4 Prime / Pro

Now the most interesting part. Buckle your seat belts and we begin.

1. We will start by booting our Redmi 4 Prime device in EDL mode (also called “download mode”). To do this press and hold “Volume +” and “Power” button, after short vibration signal release both buttons and select “download” in the boot menu.
2. Connect your phone to PC and wait for all the drivers to be installed. In the end you should see your Redmi 4 Prime phone in device manager and it should be identified as Qualcomm HS-USB QDLoader 9008 (COMX). If your device is identified as Relink HS-USB QDLoader 9008, then continue to this guide for a quick solution – Redmi 4 is identified as Relink HS-USB QDLoader 9008 (COMX).
3. Let’s continue by starting MiFlash. Press “Select” and find extracted ROM folder with “images” folder in it. The path should look like this: C:\anyfoldername\markw_global_images_V8.1.2.0.MBEMIDI…
4. In MiFlash press “Refresh” button. In “Device” column you should see your connected device with the same COM-port number as it was identified in Device Manager.
5. In the bottom of MiFlash app select “clean all”.
6. Now press “Flash” button and wait until flashing process is finished. Usually it takes around 5 minutes. If everything was successful in the “result” column you will see “success” message on a green background.
7. Disconnect your device from PC and reboot it by pressing “Power” button for some time.
8. First startup will take around 15-20 minutes. If you see some kind of progress bar on your device that’s pretty much ok, just wait.

In case you’ve got some errors or troubles during the process you should first try different MiFlash version. In case this didn’t help, then try to connect your device to different USB port or use other PC.

Hope this will be helpful and good luck!

The post [Guide] How to flash MIUI Global ROM 8.1.2.0 on Redmi 4 Prime appeared first on Xiaomi Firmware.

Reduce noise and fix sound on Redmi 4 Pro during a call

The solution is very simple: try to disable pop-up notifications during a calls.

1. Go to the “Settings”.
2. Then “Notifications”.
3. “Application notifications”.
4. Open “Phone”.
5. Disable pop-up notifications.

The irritating sound should be gone now!

The post [Guide] How to fix Redmi 4 sound issues during a call appeared first on Xiaomi Firmware.

Global Stable 8.2.1.0 (MBEMIDL) Short Review

• Slightly improved mobile signal
• More free RAM memory
• MIUI performance is increased
• Battery life is extended a little bit
• New features is added (more information below)
• New Google App “Duo” – Service for video calls.

Any bugs in this ROM version? As we’ve noticed auto-brightness of the screen is working not very well. Auto-brightness behaves absolutely unpredictably, on 8.1.2.0 we didn’t noticed similar things.

List of MIUI 8.2 New Features

• Improved toggles menu.
• Automatic Tasks – Automatic changes of system settings based on time and battery charge.
• New “Home Screen” setting added in the “Settings” menu.
• New power save mode.
• New icons when connecting USB cable and new icons for changing the keyboard language.
• Automatic scanning for infections and viruses of installed third-party applications.

ROM Details:

• Android Version: 6.0.1
• Modem: V044
• Kernel: 3.18.24

Download link:

Redmi 4 Prime / Pro – Global Stable 8.2.1.0 Recovery ROM: miui_HM4ProGlobal_V8.2.1.0.MBEMIDL_5f3af3d494_6.0.zip

MD5: 5f3af3d49446337d74121941dcbaa609

Redmi 4 Prime / Pro – Global Stable 8.2.4.0 Recovery ROM:

miui_HM4ProGlobal_V8.2.4.0.MBEMIDL_454a067758_6.0.zip

Redmi 4 Prime / Pro – Global Stable 8.2.1.0

Latest Fastboot ROM Version 8.2.4.0: Download

The post [Download] Global Stable 8.2.1.0 for Redmi 4 Pro appeared first on Xiaomi Firmware.

How to fix large debug_log and btsnoop_hci.log on Xiaomi Redmi 4 Pro / Prime

Large btsnoop_hci.log solution

After using the Bluetooth the log file btsnoop_hci.log is created in user partition. Everything that being transferred by Bluetooth is written into this log. In some cases btsnoop_hci.log size is calculated in gigabytes (especially if you’re listening to music via Bluetooth).

The solution is simple (root is required):

1. Open /etc/bluetooth/bt_stack.conf
2. Search for these two lines and change them both to “false”. Should look like this:

   BtSnoopLogOutput=false
   BtSnoopExtDump=false

3. Reboot your device. Nothing will be written into bt_stack.conf anymore.

Large debug_log folder

In user partition, inside the MIUI folder the debug_log is created and it keeps growing in size and constantly writes some logs.

The solution is to create an empty file (root is not required):

1. Inside MIUI folder, delete debug_log folder.
2. Now instead of debug_log folder create empty file with the same name “debug_log”.
3. The issue is solved. No useless and large logs anymore.

The post Solution for large debug_log and btsnoop_hci.log on Redmi 4 Prime / Pro appeared first on Xiaomi Firmware.

Download and Install TWRP 3.0.2-2 For Redmi 4 Pro

TWRP 3.0.2-2 Features

• Multilingual
• Backup all partitions
• dm-verify disable option
• Root device
• OTG works
• To enter recovery while device is turned off hold 3 buttons (vol up, vol down + power)
• Reboot from recovery to recovery

How to install TWRP 3.0.2-2 For Redmi 4

Short guide on how to install TWRP using your PC and with unlocked bootloader.

1. Download and extract TWRP
2. Enter FASTBOOT (volume down + power button)
3. Run “Flash-TWRP.bat” (right mouse click and “Run as administrator”)
4. Press any key a few times and wait for recovery to load completely

What to do after TWRP install?

1. After device startup reboot in to recovery
2. Go to the “Wipe” and “Format Data”, reboot in recovery, again “Wipe” and now select “Custom Wipe”, select Dalvik/ART Cache, Cache, System & Data, swipe to the right to wipe. Reboot is recommended.
3. And only then install custom ROMs. ROM image can be saved on SD card or it can be installed directly from PC in recovery mode. In case you have official firmware installed, don’t forget to disable bootloader.

Download: Redmi4_TWRP-3.0.2-2.zip

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