
Samsung Galaxy C9 Pro
The latest firmware for Samsung Galaxy C9 Pro (SM-C900F) is C900FDDS1CTJ1 with Android 8.0.0 (Oreo), released on December 1, 2020 for 9 regions (CSC). Every official firmware build for SM-C900F, newest first: one row per build with all regions (CSC) that received it.
Each firmware build has its own page at https://samfirm.shop/build/{PDA}, where {PDA} is the build number from the list above. Example: https://samfirm.shop/build/C900FDDS1CTJ1
SM-C900F started on Android 6 and has received 2 major Android upgrades; it now runs Android 8.0.0 (Oreo). The newest build, C900FDDS1CTJ1, was released on December 1, 2020 with the August 2018 security patch. No new build has appeared for 71 months, so regular updates for this model have most likely ended.
Specifications of SM-C900, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.
· Device stability improvements, bug fixes.
· New and / or enhanced features.
· Further improvements to performance.

SM-C900X

SM-C701X

SM-C710X

SM-C500X

SM-C5018
The newest firmware for SM-C900F runs Android 8.0.0 (Oreo): build C900FDDS1CTJ1, released on December 1, 2020.
The latest build for SM-C900F, C900FDDS1CTJ1, was released on December 1, 2020 (5 years ago).
SM-C900F has had no new firmware for 71 months, so regular updates have most likely ended.
Yes, all firmware files for SM-C900F are 100% official, original, and obtained directly from Samsung servers.
To flash SM-C900F, 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-C900F.