
Samsung Galaxy Note 10.1 (3G + WiFi)
The latest firmware for Samsung Galaxy Note 10.1 (3G + WiFi) (GT-N8005) is N8005JVCMA3 with Jelly(Android Bean), released on September 26, 2014 for 1 region (CSC). Every official firmware build for GT-N8005, 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/N8005JVCMA3
All 2 builds in our database run Android 4.4.2 (KitKat). The newest build, N8005JVCMA3, was released on September 26, 2014. No new build has appeared for 147 months, so regular updates for this model have most likely ended.
Box codes of GT-N8005 for different colors and markets. Firmware is chosen by the model code GT-N8005 and your region (CSC), not by the SKU.

GT-N7000B

GT-N7005

GT-N5105

GT-N8020

GT-N8013

GT-N8010

GT-N8000

GT-N7108D
The newest firmware for GT-N8005 runs Android 4.4.2 (KitKat): build N8005JVCMA3, released on September 26, 2014.
The latest build for GT-N8005, N8005JVCMA3, was released on September 26, 2014 (12 years ago).
GT-N8005 has had no new firmware for 147 months, so regular updates have most likely ended.
Yes, all firmware files for GT-N8005 are 100% official, original, and obtained directly from Samsung servers.
To flash GT-N8005, 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-N8005.