Flashing stock MIUI ROM through Fastboot is the first possible solution every MIUI user can do to fix a bricked Xiaomi phone. However, some recent Xiaomi devices require official unlocked bootloader in order to flash stock ROM using Fastboot method. There may be workarounds to do Fastboot-flashing without having to obtain official bootloader unlock permission but those would be risks if the doer conducted the proceed inappropriately. Now what if your phone is bricked or in bootloop state but you don’t have official permission from Xiaomi to unlock your bootloader? Well, there are two options you can undergo: First, you can apply for it and wait till your application is granted; Second, you can try this workaround.
This article will show you some required steps to flash stock MIUI ROM on Mi Max with locked bootloader so you can unbrick your phone faster – since you don’t have to wait for Xiaomi to grant you the unlocking permission. However, as I has mentioned above, this mechanism have some risks if you did it inappropriately. Therefore, please proceed with full caution. Neither XiaomiTips.com nor Mitch002, the one discovered the trick, will hold responsibility of any damage on your phone as a result of following this guide. You have to firstly create full backup of your data or files if your phone is not in bricked state.
Why do you have to flash through fastboot?
If somehow your Mi Max phone is running tampered / unofficial MIUI ROM and you want to flash back to stock original ROM.
Step 1 – Disable Windows Drivers Signature Enforcement on your computer. How to do it? Simply follow these sequence. You can do that by pressing Windows button + i on keyboard to reveal the Settings page. From there you can choose Update & Security >> Recovery >> Advanced startup >> Restart now. Wait a moment for your computer to restart. Next, go to Troubleshoot >> Advanced options >> Startup settings >>Restart. Once your computer restarts, now choose Disable driver signature enforcement which is option number 7. See the video below for more details :
Step 2 – Now install MiFlash Beta tool onto your computer.
Step 3 – Extract the MIUI Fastboot ROM (.tgz) you have downloaded. Use either WinRAR or WinZIP to extract it. Make sure you have all the files and and the images folder.
Step 4 – If your phone is still in normal mode, you may need to enable USB Debugging (Settings >> Additional Settings >> Developer Options >> Turn on USB Debugging). Of course you have to enable Developer Options first. However, if your phone is in bricked state, then I assume you have enabled it before.
Step 5 – Now you have to firstly boot your phone into Emergency Download Mode (EDL Mode). You can read and follow my previous guide : How to put Mi Max into EDL mode. Alternatively, you can also try this one :
Turn off your phone completely.
Launch up Mi Flash Beta on your computer.
Plugin the USB cable into your computer main USB port. It means if you are using PC then the USB port is in the back of your PC (the one attached directly to the motherboard).
Now grab your phone.
Press and hold Volume Up (+) as well as Volume Down (-) buttons all together and then plugin another end of the USB cable to your phone while the buttons are still pressed. Alternatively if that also didn’t work: Press and hold Volume Up + Volume Down + Power buttons all together, connect it to USB cable (which still connected to PC), and then release the Power button at the first vibration. Wait for the device to vibrate for the second time and release both Volume buttons.
Step 6 – Assuming your phone is now in EDL mode and it is connected to computer, click the “Refresh” button on MiFlash tool. Your device should be displayed in the list of connected device. It will be recognized as COM3 or COM4.
Step 7 – Next, click the “Select” button and locate the folder of where you extracted MIUI Fastboot ROM in your computer.
Step 8 – Select “Clean All” option in the button of the tool.
Step 9 – Finally, click the “Flash” button and wait for the tool to finish its job.
Step 10 – Once done, You’ll see the status displayed as “Success“.
Voila! Your device is now resurrected and it comes back to life. Enjoy!
If your device is not displayed when you hit the “Refresh” button, you may also try to firstly install Qualcomm QDLoader driver. One more thing, Mitch002 also stated that the same method would also work on MIUI Global Stable.
Have that worked successfully for your Mi Max? Do not hesitate to share your experience in below comment section.