Samsung S3 Custom Rom Android 10 Link

Android 10 custom ROM

I understand you're looking for a for the Samsung Galaxy S3 (GT-I9300 model, likely Exynos).

Samsung Galaxy S3 Custom ROM: Android 10 (LineageOS 17.1) – Complete Guide

Samsung Galaxy S3 (GT-I9300) Android 10 via unofficial custom ROMs, most notably LineageOS 17.1 samsung s3 custom rom android 10 link

The most common Android 10 build for the i9300. You can find active development and download links in the XDA Developers Samsung Galaxy S3 Forum or via specific community repositories. Android 10 custom ROM I understand you're looking

1. Open ODIN on your PC.
2. Connect your S3 via USB. You should see a blue or yellow COM port box light up.
3. Click the AP (or PDA) button and select the custom recovery file you downloaded (usually a .tar.md5 file).
4. Ensure only "Auto Reboot" and "F. Reset Time" are checked.
5. Click Start. The phone will reboot.
6. Crucial: immediately after the phone reboots, hold *Volume Up + Home +

A Custom Recovery

: You must have TWRP 3.5.2 or newer installed. Open ODIN on your PC

Q: I have no mobile network / IMEI is null.

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.