Samsung S3 Custom Rom Android 10 Link -

Ensure your phone has at least 70% battery power.

Running Android 10 on a device built for Android 4.0 comes with compromise. Here are a few things to keep in mind:

To make Android 10 functional on this hardware, developers utilize (or custom ROMs based on it) built specifically using Android Go edition configurations. Android Go optimizes the operating system to run on devices with low memory, disabling heavy animations and background processes to ensure the phone remains usable. samsung s3 custom rom android 10 link

Reboot to download mode (Odin flashing):

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. Ensure your phone has at least 70% battery power

If your device gets stuck on the boot animation for longer than 20 minutes, boot back into TWRP, perform another advanced wipe (excluding internal storage), and re-flash the ROM and GApps files carefully.

If you want, I can:

Ensure your phone has at least 70% battery to prevent it from shutting down mid-process.

Installing a custom ROM will wipe all your data. Always perform a in TWRP before proceeding. Android Go optimizes the operating system to run

Unplug your phone, pull out the battery, reinsert it, and immediately boot into recovery mode by holding . Step 3: Preparing and Wiping the Device

Check the following partitions: . Do not check Internal Storage or Micro SDCard. Swipe to Wipe. Step 4: Flash the Android 10 ROM Go back to the TWRP home screen and tap Install . Tap Select Storage and choose your MicroSD Card.