
Samsung Galaxy Beam
Every official firmware build for GT-I8530, newest first: one row per build with all regions (CSC) that received it.
Box codes of GT-I8530 for different colors and markets. Firmware is chosen by the model code GT-I8530 and your region (CSC), not by the SKU.
You can find the firmware on the model: GT-I8530 page.
Yes, all firmware files for GT-I8530 are 100% official, original, and obtained directly from Samsung servers.
To flash GT-I8530, you need to download the appropriate firmware, put your device into Download Mode, and use the Odin tool to load the BL, AP, CP, and CSC files.
Downgrading is only possible if the bootloader version (binary bit) of the old firmware matches the current one. Always check the binary version before flashing GT-I8530.