TUTORIAL ON HOW TO FLASH ROM USING TWRP
As the whole flashing process still seems to be a bit confusing for some people, I want to write this little guide on how to flash a ROM using TWRP.
There are some prerequisites which needs to be prepared before you start the flashing process.
Prerequisites:
1. Install the drivers needed for your phone on your operating System in order that your Phone gets recognized by the pc you attach it on via USB. I used the Xiaomi Mi Flash Tool V2 which did that for me.
Xiaomi Mi Tool V2
2. Your bootloader needs to be unlocked . If you haven't done this so far, then you can find a guide here on how to do that:
UNLOCK BOOTLOADER GUIDE
3. Install Minimal ADBV and fastboot:
Minimal ADB and fastboot
4. Allow USB Debugging on your phone.
5. Download TWRP for your device.
6. Download the ROM you want to install.
7: The TWRP file you download will have a long name. In order to make the command execution in the command line easier, it would be better to rename it to something easy like
twrp.img.
8. Move the twrp.img from your download location into the location where you installed Minimal ADB (should be something like: C:\Program Files\Minimal ADB and fastboot\
9, Connect your phone via USB and transfer the (unzipped) ROM to the root folder of your phone.
10. After the file was copied successfull to your phone, disconnect the Phone from your PC.
So this was the prerequisites part which now will lead us to the main part of the process.
Installation Process (PC)
1. Turn Off your phone
2. Boot the phone into fastboot mode by pressing
VOLUME DOWN +
POWER ON Button.
3. Connect the phone to your PC.
4. Open Minimal ADB and fastboot (as administrator, by right klicking the icon and selecting "Run as administrator". This will start the application at the installation folder.
5. Type
"fastboot boot twrp.img"
6. After twrp was succesfully transferred to your phone via the upper command, the phone should restart in TWRP.
Installation Process (ON YOUR PHONE):
7. Press the right button to change the language.
8. Hit install on the TWRP menu.
9. Select the zip file you transferred to your phone.
9. If a password is aked then type in your unlock screen code.
10. Check the automatically restart after installation box.
11. Slide to the right to confirm installation start.
After the installation is done the phone should automatically restart and try to boot up the system. The boot process can take some minutes so dont worry and simply wait patently untill the phone booted up again.
I hope I could help you with this