
Samsung Galaxy Note 10.1 (Korea)
The latest firmware for Samsung Galaxy Note 10.1 (Korea) (SHW-M480S) is M480SKSUKQA1 with Android 4.4.4 (KitKat), released on January 18, 2017 for 1 region (CSC). Every official firmware build for SHW-M480S, 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/M480SKSUKQA1
All 7 builds in our database run Android 4.4.4 (KitKat). The newest build, M480SKSUKQA1, was released on January 18, 2017. No new build has appeared for 118 months, so regular updates for this model have most likely ended.

SHW-M486W

SHW-M585D

SHW-M580D

SHW-M570S

SHW-M500W

SHW-M480W

SHW-M440S
The newest firmware for SHW-M480S runs Android 4.4.4 (KitKat): build M480SKSUKQA1, released on January 18, 2017.
The latest build for SHW-M480S, M480SKSUKQA1, was released on January 18, 2017 (9 years ago).
SHW-M480S has had no new firmware for 118 months, so regular updates have most likely ended.
Yes, all firmware files for SHW-M480S are 100% official, original, and obtained directly from Samsung servers.
To flash SHW-M480S, 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 SHW-M480S.