
Samsung Galaxy Buds3 Pro,White
Every official firmware build for SM-R630N, newest first: one row per build with all regions (CSC) that received it.
Box codes of SM-R630N for different colors and markets. Firmware is chosen by the model code SM-R630N and your region (CSC), not by the SKU.

SM-R540N

SM-R640N

SM-R420N

SM-R530N

SM-R900N

SM-R910N

SM-R840N

SM-R940N
You can find the firmware on the model: SM-R630N page.
Yes, all firmware files for SM-R630N are 100% official, original, and obtained directly from Samsung servers.
To flash SM-R630N, 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 SM-R630N.