A: You flashed a ROM meant for a different variant. Your EFS partition is corrupted. Restore your stock backup immediately. This is why we warned about variants.
A: You flashed the wrong GApps. You must use ARM 10.0 PICO only. Wipe System and re-flash ROM + correct GApps. samsung s3 custom rom android 10 link
A: No. Snapdragon S3s have locked bootloaders that cannot be bypassed for Android 10. Maximum is Android 7.1 Nougat. Alternative Android 10 ROM Links (If Lineage is too heavy) If you find LineageOS 17.1 sluggish, try this lighter alternative: A: You flashed a ROM meant for a different variant
Direct Download Links (Samsung S3 Custom ROM Android 10) Here are the verified, direct download links (as of the latest update). Note: Always scan files before use. 1. The Android 10 ROM (LineageOS 17.1) File Name: lineage-17.1-202302XX-UNOFFICIAL-i9300.zip Source: XDA Developers Forum (rINanDO) Direct Download Link (example structure): https://sourceforge.net/projects/linos17-1-i9300/files/lineage-17.1-20230218-UNOFFICIAL-i9300.zip/download This is why we warned about variants
Link: https://github.com/crdroidandroid/android_device_samsung_i9300 (Check Releases section) Why use it? It has more customization (status bar tweaks, launcher mods) but slightly lower benchmark scores. Conclusion: Is it worth it? Installing a Samsung S3 custom ROM Android 10 transforms your old phone from an insecure relic into a usable backup device or a dedicated music player. The download links above are your gateway to reviving this legendary phone.
However, in the world of Android enthusiasts, the S3 refuses to die. Thanks to a dedicated community of developers on XDA Developers and beyond, you can now run on your Samsung S3. Yes, you read that right. A device with a 1.4GHz quad-core processor and 1GB of RAM can legally run a modern operating system.
The Samsung Galaxy S3 (GT-I9300) was a revolutionary device when it launched in 2012. With its iconic pebble-shaped design and vibrant HD Super AMOLED display, it was a flagship to be reckoned with. Fast forward to today, and official support from Samsung ended years ago at Android 4.3 Jelly Bean (or 4.4 KitKat for some variants).