Mi FastBoot Unbrick Tool 2.0...

What is this tool?

After getting so many errors while using MiFlash Tool, I decided to find a simple but an effective way for flashing the rom without any errors.After many attempt i was able to finad a perfect solution for it.

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The main cause of getting bootloop is relocking of the bootloader
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This tool was created as a result of it. Hope this will help all others who are facing this issue...

Features of this Tool

Small in size nearly 3 MB
No need of edl, Works with fastboot mode
Chance of failure is 1% or below

requirements

Java Installed In PC. Get java from here
ADB drivers installed..Get it from here
Pda Net (optional)..Get it from here
Bootloader Unlocked
Get Fastboot rom from here

What do the problems occurs when using MiFlashTool??

The main errors I faced with Mi FlashTool Are:-

Unspecified error(0x80004005
Not Enough Memory
Error while receiving halo Packet
And many other errors I haven't noticed or didn't cared

What/How this tool works?

-So after bricking my phone any time (nor even able to enter Recovery Mode) and many unsuccessful flashes using MiFlashTool I looked into the Fastboot ROM files and Got an idea about how the Flashing process works.

-All you need is fastboot to unbrick the phone. No edl or no other things to flash the ROM.

- For almost every Mi Phone, unbricking will be the same as mentioned in the Manual Method(This tool is designed for RN3). If I get testers will think about doing for other models also.

- I used the RN3 rom from here

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(only use if you replace the Unlocked Bootloader file)
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-First Things first
Run cmd ad administrator and run the following command one by one

Code:

bcdedit.exe -set loadoptions DDISABLE_INTEGRITY_CHECKS

 bcdedit.exe -set TESTSIGNING ON

3. Reboot your system.

-Download the file from the attachment and extract it in the images folder of the fastboot rom. The folder will have many files like a boot, cache, cust, etc..
-Once extracted the software copy and paste the unlocked bootloader file in the images folder and overwrite any existing file.
-Now run the software and follow the instructions (its very noob friendly,I think there will be no more need for detailed tutorial)

- Once the flashing process is completed your phone will be good to go

Not Working ?? Try Manually

- Go to Images Folder of the fastboot rom and holding shift key right click to Open Command Window Here.

- Once you entered the cmd and execute the command individually as shown below.

fastboot flash tz tz.mbn
fastboot flash sbl1 sbl1.mbn
fastboot flash rpm rpm.mbn
fastboot flash aboot emmc_appsboot.mbn
fastboot flash hyp hyp.mbn
fastboot flash tzbak tz.mbn
fastboot flash sbl1bak sbl1.mbn
fastboot flash rpmbak rpm.mbn
fastboot flash abootbak emmc_appsboot.mbn
fastboot flash hypbak hyp.mbn
fastboot erase boot
fastboot flash modem NON-HLOS.bin
fastboot –S 512M flash system system.img
fastboot flash cache cache.img
fastboot flash userdata userdata.img
fastboot flash recovery recovery.img
fastboot flash boot boot.img
fastboot flash sec sec.dat
fastboot flash dsp adspso.bin
fastboot flash mdtp mdtp.img
fastboot erase splash
fastboot flash splash splash.img
fastboot erase DDR
fastboot flash cust cust.img

Once that's done your phone will be ready to go.

If you replaced the unlocked bootloader file you may get a continuous reboot. If you face something like that simply type the following command(After doing above process only)