
Samsung Galaxy S5 (DoCoMo)
The latest firmware for Samsung Galaxy S5 (DoCoMo) (SC-04F) is SC04FOMU1XQH1 with Android 4.4.2 (KitKat), released on August 3, 2017 for 1 region (CSC). Every official firmware build for SC-04F, 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/SC04FOMU1XQH1
All 12 builds in our database run Android 4.4.2 (KitKat). The newest build, SC04FOMU1XQH1, was released on August 3, 2017. No new build has appeared for 112 months, so regular updates for this model have most likely ended.

SC-02D

SC-02B

SC-01E

SC-01D

SC-01C
The newest firmware for SC-04F runs Android 4.4.2 (KitKat): build SC04FOMU1XQH1, released on August 3, 2017.
The latest build for SC-04F, SC04FOMU1XQH1, was released on August 3, 2017 (9 years ago).
SC-04F has had no new firmware for 112 months, so regular updates have most likely ended.
Yes, all firmware files for SC-04F are 100% official, original, and obtained directly from Samsung servers.
To flash SC-04F, 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 SC-04F.