[Redmi Note 8 Pro Guides, News, & Discussion] Compass Linux:
Hello everyone.

Yesterday I bricked my Xiaomi Redmi Note 8 Pro, and today I managed to unbrick it without requiring anything special (no need for a Authorized Service Account).

I use Linux, so the scripts inside the Stock ROM end with the .sh file extension. If you're using Windows, use the .bat files.

Phone:

Xiaomi Redmi Note 8 Pro 128GB - Begonia (with NFC).

Bricked state:

Constant boot loop;

No access to bootloader;

No access to system;

Access to fastboot.

Phone requirement:

You must be able to load fastboot mode.

PC requirements:

1. You'll need adb tools (SDK Platform-Tools) to communicate with your phone. Official link is below;

2. Download and unpack the Stock ROM linked below.

Instructions:

1. You need to make sure your phone has some power in it;

2. Unpack the Stock Rom and enter its folder (begonia_global_images_V10.4.2.0.PGGMIXM_20191024.0000.00_9.0_global);

3. Put your phone into fastboot mode (Key Combo: Hold the Power button + Volume Down button until the fastboot logo appears);

4. Connect your phone to your PC;

5. Run the flash_all.* scripts according to your operating system:

5.1. Linux: "./flash_all.sh";

5.2. Windows (untested; I'm not using Windows): Run "flash_all.bat" (How to Run a BAT File on Windows);

6. Wait something between 5min to 10min. It's quite fast, and the flashing process is verbose enough.

7. Profit.

F.A.Q.:

1. How did you find this?

Well, none of the unbrick methods in the forum were working, except for the Authorised Service Account one which I didn' t test. I desperately wanted to unbrick my phone by myself, and I thought that it couldn't get worse (it could with a completely blank screen, but I got away with it).

2. Where did you get the Stock ROM from?

I can't remember. It likely was from a xda forum post but I'm unsure. If I can find the original post containing the Stock ROM I used I'll write it here.

3. Which Miui and Android version did you have prior to the brick?

MIUI Global 11.x + Android 9.

4. Which Miui and Android version does the Stock ROM you installed have?

MIUI Global 10.4.2 + Android 9.

5. Can I install any Stock ROM?

As long as it's compatible with your phone version, yes. I recommend not installing a Android 10 Stock ROM because of this: https://xdaforums.com/showpost.php?p=82743011&postcount=3

6. What if can't enter fastboot mode (phone screen in dead blank)?

You won't be able to unbrick your phone using this method. It is worth trying to enter fastboot mode even though your phone has a dead screen, because fastboot might be working anyway (you'll have to test this yourself, as in trying to load fastboot with a blank screen). Read the next question.

7. How can I test if fastboot mode is working?

"adb devices" returns nothing;

"fastboot devices" returns your device (proof it works). Since "fastboot devices" finds your device, you can run the appropriate scripts.

8. What about your Mi Unlock Status before and after the brick?

Before: Unlocked.

After: Unlocked (I thought it would lock the bootloader again, but it didn't).

9. My phone is bricked and I don't know how much battery my phone has left. What should I do?

You should let it turn off due to 0% battery and charge it fully. I do not recommend you flash like I did, without knowing how much battery I had (yes, I took my chances there). As far as I know, any phone in fastboot mode does not charge its battery.

10. Why is fastboot working in your case?

I don't know. I suspect flashing the preloader and the lk from this OP Redmi Note 8 Pro - The Megathread helped, but it's just a hunch.

11. Will you attempt to flash a Custom ROM again?

After taking a break, yes.

12. Is this phone now unbrickable?

As long as fastboot mode works, perhaps. More feedback is required.

Files:

SDK Platform-Tools (adb/fastboot): https://developer.android.com/studio/releases/platform-tools

Stock ROM used: http://bigota.d.miui.com/V10.4.2.0.PGGMIXM/begonia_global_images_V10.4.2.0.PGGMIXM_20191024.0000.00_9.0_global_270117fdb2.tgz

Feedback:

Due to my job I'm currently very short on time during the week to follow this thread, so it would be immensely helpful to have your feedback on this procedure.

Feedback from people who's phones are bricked with blank screens would be very appreciated, specifically if they can enter fastboot mode without any visual cues from their phones. If any bricked state allows fastboot mode, it seems this phone is easily unbrickable.

Thanks:

strongst for his understanding and in reopening this thread.

Compass.