LineageOS 18 for Galaxy S3 is now available to download. This article explains how to install the ROM on Galaxy S3 with a step-by-step guide. This Lineage OS 18 build for Galaxy S3 is brought to you by developer ChronoMonochrome.
Follow the links to get other Android 11 builds: Android 11 Download for supported devices.
DONATION TO DEVELOPER(S)/PROJECT:
LineageOS 18 development and porting is a voluntary work! If you want this project keep going, please contribute to the developer(s) and the LineageOS project:
– Donate to ChronoMonochrome
– Donate to LineageOS project
THIS IS AN INITIAL BUILD OF LineageOS 18 FOR Galaxy S3, WHICH MAY NOT BOOT AT ALL.
MAKE SURE TO BACKUP ALL DATA OF YOUR PHONE AND KEEP IT IN YOUR MIND THAT YOU ARE FLASHING AT YOUR OWN RISK.[/su_note] [su_note note_color=”#FBF4DD” text_color=”#A38C68″ radius=”3″ class=”” id=””]Installing LineageOS 18 for Galaxy S3 requires an unlock bootloader on Galaxy S3, which may VOID your warranty and may delete all your data. Before proceeding further you may consider backup all data on the phone.
You are the only person making changes to your phone; neither the developer nor I can be held responsible for the mistakes done by you.[/su_note]
Status of the Galaxy S3 LineageOS 18 ROM
WHAT’S WORKING:
– Unknown
– Unknown
KNOWN ISSUES:
– Unknown
– Unknown
[su_note note_color=”#D8F1C6″ text_color=”#769958″ radius=”3″ class=”” id=””]
Where to download LineageOS 18 for Galaxy S3?
- LineageOS 18 Download for Galaxy S3:
Build updated date: 20th October 2020
[CMDM-download id=124393] - Galaxy S3 TWRP Download (i9300) for this Galaxy S3 LineageOS 18 ROM
- How to install TWRP recovery on Galaxy S3
- Galaxy S3 unlock bootloader guide – required to install TWRP recovery
- GApps for Android 11
- How to Root Android 11
- Download ADB to sideload the ROM
– 15 Seconds ADB Installer for Windows
– Minimal ADB and Fastboot for Windows
– ADB Fastboot for Linux / MAC
How to Install LineageOS 18 on Galaxy S3?
[su_note note_color=”#D7E3F4″ text_color=”#728095″ radius=”3″ class=”” id=””] Following are the two sub-sections of this Galaxy S3 LineageOS 18 update guide:- First time installation of LineageOS 18 for Galaxy S3
- Upgrading LineageOS 18 for Galaxy S3 from a previous build of LineageOS 18 ROM
First time Installation of LineageOS 18 on Galaxy S3
[su_note note_color=”#D7E3F4″ text_color=”#728095″ radius=”3″ class=”” id=””]This ROM update process requires few guides to be followed and few files to be downloaded. Everything referred in the below guide is provided in the above downloads section.[/su_note]- Download and Copy the LineageOS 18 ROM for Galaxy S3 and a compatible GApps to your phone.
- Boot into the TWRP custom Recovery to install this Galaxy S3 LineageOS 18 ROM. Make sure to use the TWRP provided in above downloads section or any system-as-root configured TWRP for Galaxy S3
[su_note note_color=”#FBF4DD” text_color=”#A38C68″ radius=”3″ class=”” id=””]- By now your phone must have an unlocked bootloader to proceed with other steps. If not, unlock the bootloader first and proceed ahead.[/su_note] - Wipe the data partition, Cache partition, vendor partition and system partition.
[su_note note_color=”#D7E3F4″ text_color=”#728095″ radius=”3″ class=”” id=””]- Here is a guide explaining how to wipe using TWRP recovery.[/su_note]
[su_note note_color=”#F9D9D9″ text_color=”#AA4343″ radius=”3″ class=”” id=””]This will delete evrything on your phone! You may consider taking a complete backup of your phone data or take a backup of all relevant partitions. Below are few links that may help you in backing up:
– How to backup Android data
– how to take NANDROID backup on TWRP recovery[/su_note] - Install the Galaxy S3 LineageOS 18 ROM file using TWRP recovery or any custom recovery of your choice
(OR)
Use ADB Sideload to install the ROM.
[su_note note_color=”#D7E3F4″ text_color=”#728095″ radius=”3″ class=”” id=””]You can use any one of the above mentioned method to install the ROM zip file on the phone.[/su_note] - Reboot into the TWRP recovery again.
- Then install the Android 11 GApps package.
[su_note note_color=”#D7E3F4″ text_color=”#728095″ radius=”3″ class=”” id=””]- Here is a post explaining how to install GApps using TWRP recovery.[/su_note] - Reboot and Enjoy the Android 11 based LineageOS 18 for Galaxy S3.
Upgrading LineageOS 18 on Galaxy S3 (i9300):
- Copy the latest ROM zip file of LineageOS 18 for Galaxy S3, Magisk ROOT package to the phone
- Boot into Recovery to flash the updated ROM for Galaxy S3
- Wipe the system partition from the TWRP recovery menu.
- Install the Galaxy S3 LineageOS 18 update, either using TWRP recovery or ADB Sideload.
- Reboot and see if you have the GApps and ROOT access or NOT.
[su_note note_color=”#D8F1C6″ text_color=”#769958″ radius=”3″ class=”” id=””]- Most Gapps are built in such a way that it will sustain across ROM updates.[/su_note] - If you don’t have GApps after upgrading the LineageOS 18 on Galaxy S3, then download Android 11 GApps and then flash it.
[su_note note_color=”#D7E3F4″ text_color=”#728095″ radius=”3″ class=”” id=””]- Here is a post explaining how to flash GApps using TWRP recovery.[/su_note] - If you don’t have ROOT after upgrading the LineageOS 18 on Galaxy S3, then flash the Magisk rooting package or follow this Android 11 root guide.
- Once everything is done, reboot and Enjoy the LineageOS 18 on Galaxy S3.
Add-on links for Galaxy S3
– Android 11 GCam
– Google Camera for all supported devices
Visit the Galaxy S3 (i9300) page for Google Camera updates, other Android 11, Android Oreo ROMs, Nougat ROMs, or other ROMs and all other device specific topics.