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Tutorial LineageOS19.1 (12L) Unofficial for Redmi Note 9/T 5G - Guide

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Note: Do at your own risk, mga ka-cannong. Changing ROM/Firmware might comes with issue; also can brick device. Ito ay pawang guide lamang, hindi utos.

Pre-requisite:
  • Cannon/g Device
  • Unlock Bootloader
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  • PC and a Data Cable
  • Currently in MIUI 13 firmware (A12)

Step-by-Step, medyo newbie friendly:
1. I-download ang LineageOS at recovery dito: You do not have permission to view the full content of this post. Log in or register now., credits goes for him---of course.
Note: Para sa GAPPS, download from You do not have permission to view the full content of this post. Log in or register now.. Make sure na ang file ay 12.0 at arm64.

2. Sa device, make sure na naka-open ang USB Debugging sa Developer's Option, at i-connect sa PC via data/usb cable.
Note: Kung may lumabas na adb authorization sa device, just tap yes.

3. I-open and command prompt (cmd) sa loob ng SDK platform tools folder. Click lang sa path area sa bandang taas, at i-type ang cmd, then press Enter.

4. Type: adb devices, at i-check kung naka-list and serial number at ang word na 'device'.
Note: If walang nakalagay na kahit ano, hindi mo maayos na nagawa ang ADB/Fastboot setup. Fix mo muna iyon.

5. Type: adb reboot bootloader, you're device will reboot in fastboot mode.

6. Type: fastboot devices, at i-check kung naka-list ang serial number at ang word na 'fastboot'.
Note: If walang nakalagay na kahit ano, hindi maayos na naka-install ang fastboot driver. Fix mo muna iyon.

7. Type: fastboot flash recovery <recovery file>, pakibasa muna ang note dahil may dalawang way para ilagay ang recovery file.
Method 1: Ilagay muna ang recovery.img sa loob platform tools folder, and type: fastboot flash recovery recovery.img, make sure na magkapareho sila ng name, and press Enter.
Method 2: Kung nakalagay sa ibang folder, i-type muna ang fastboot flash recovery at wag muna mag-Enter, pumunta sa recovery.img, click, hold and drag papunta sa command prompt. Automatic na mape-paste ang path ng file. Then click again in command prompt, make sure na may space sa pagitan ng recovery at ng path, and Enter.


8. Pagkatapos ma-flash, type: fastboot reboot recovery.

9. Sa recovery screen ng device, tap Apply update > Apply from ADB.

10. Sa PC, same command prompt, type: adb sideload lineageOS.zip
Note: Same sa Step 7, follow method 1 or 2. Either paste the zip inside platform folder and type the same name in command prompt or copy the path.

11. Dahil wala 'tong basic GApps, nasa Step 1 Note ang link. Ito na rin ang tamang pagkakataon para i-install iyon. I-flash lang din via adb sideload <file name.zip>

12. After flashing, while in recovery mode, Format Data/Factory Reset whether you like it or not.
Note: Required ang Format Data/Factory Reset. Kapag nag-format data ka na bago ka pa mag-flash ng GApps. Need mo ulitin ang format, not doing so might cause laggy-ness.

13. Reboot, and enjoy your LineageOS 19.1 sa iyong cannon/g device.

P.S. Sa ngayon, wala namang known bug/s. Again this is for Cannon (Redmi Note 9 5G) and Cannong (Redmi Note 9T 5G) devices.

Screenshots, binago ko lang kulay. Pero di ganiyan default color, and also nai-dark mode ko. Paki-check na lang yong nasa files below.

Screenshot_20220820-125104_Music.png Screenshot_20220820-125122_Settings.png Screenshot_20220820-125138_Settings.png Screenshot_20220820-125353_Android System.png Screenshot_20220820-125402_LineageOS Settings.png
 

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