[Xiaomi Mi 10T Lite Guides, News, & Discussion] fizzy900:
Hey guys, if you're a noob or you haven't flashed a custom ROM to an android device since the likes of the Galaxy S2 like me, this guide is made for you!

Disclaimer: I am by no means taking credit for any links posted, credits to the creators of anything mentioned! And a special thank you to the creators of the TWRP and the ROM, hopefully development will grow for such an awesome device! I am not responsible if you brick your device (by not following my tutorial :/)

The only complaints I have about this ROM is the camera quality but install the GCAM port for the Mi10T Lite, it may help!

You will need:

A Mi10T Lite (duh) or any other supported device with MIUI Installed (Android 10)

A SD card

A laptop with fastboot installed ( [OFFICIAL][TOOL][WINDOWS] ADB, Fastboot and Drivers - 15 seconds ADB Installer v1.4.3 | XDA Developers Forums (xda-developers.com) )

A Mi account

TWRP (https://www.mediafire.com/file/qaea...0I_3.5.A10_05-01-2021_BL-L-fixsdcard.img/file)

The ROM (https://xdaforums.com/t/rom-unofficial-10-0-gauguin-lineageos-17-1.4224633/)

GApps (I used this one: Download NikGapps from SourceForge.net)

B*lls

First

(Ignore this if you already unlocked your bootloader):

Download MiFlash_Unlock (http://miuirom.xiaomi.com/rom/u1106245679/4.5.813.51/miflash_unlock-en-4.5.813.51.zip)

Make sure you have a Mi account and a SIM

Go to settings, enable developer options

Once you have done this, go to developer options (additional settings, scroll down)

Enable OEM Unlocking

Enable USB Debugging (not sure if this is necessary but I like to have it enabled anyway)

Click on Mi Unlock status and add your account, remember your details! (You may need to sign out and sign back in again)

It should say account linked to device successfully or something along those lines

Grab a cable (the included cable worked for me but other cables didn't)

OPTIONAL: YOU MAY WANT TO BACK UP ALL OF YOUR DATA

Open MiFlash_Unlock which you previously downloaded and connect your phone in fastboot mode (if it doesn't show up follow this tutorial: Fixed: Fastboot not detecting your Android device (qasimtricks.com) )

Click on unlock device! It should automatically reboot when it's done

Complete the set-up process, input your Mi account details and you should be good to go!

Enable developer options again and enable USB debugging

Installing TWRP

(Ignore this if you already have TWRP installed!):

Turn off your device and boot into fastboot, connect and verify that it is connected by opening command prompt then typing "fastboot devices", it should show up

Point command prompt to the folder where your TWRP is downloaded (if it is located in downloads, type cd c:/users/(your username)/downloads

Then type fastboot flash recovery "twrp".img (replace "twrp" with the name of the recovery installed)

It should say successful, then type fastboot reboot and hold volume up + power

You've booted into TWRP! Hooray!

If it asks for the password to decrypt put it in, if it doesn't then no worries

You will notice that your internal storage is encrypted, not to worry!

Installing the ROM:

Connect your phone to your laptop (it can be in TWRP) and move the ROM to your SD card

Boot into TWRP if you haven't already, click wipe, advanced wipe and wipe Dalvik Cache/ART, Data and Cache

Once this has completed, go to install, then change the storage to SD Card

Locate the ROM file and swipe to flash!

Once the flash has completed, DO NOT REBOOT

Go to wipe and click format data, then type yes

Reboot to system! Done!

Installing GApps

(Optional):

Move the GApps file provided to your phone

Boot to TWRP

It will prompt you to enter your passcode, this will decrypt the internal storage!

Click on install and locate GApps, swipe and flash!

Reboot

Congratulations! You have installed the first custom ROM made specifically for the device :) You can install Magisk if you want, I'm in the UK and my metro bank app didn't work but by using Magisk hide and changing the name of the Magisk manager everything worked (hide every Google app)

Enjoy! I hope you found this useful ;)