
Samsung Galaxy Tab A (2016) with S Pen
The latest firmware for Samsung Galaxy Tab A (2016) with S Pen (SM-P585) is P585JXS3CTL1 with Android 8.1.0 (Oreo), released on December 28, 2020 for 10 regions (CSC). Every official firmware build for SM-P585, 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/P585JXS3CTL1
SM-P585 started on Android 6 and has received 2 major Android upgrades; it now runs Android 8.1.0 (Oreo). The newest build, P585JXS3CTL1, was released on December 28, 2020 with the November 2018 security patch. No new build has appeared for 70 months, so regular updates for this model have most likely ended.
• The security of your device has been improved.
Box codes of SM-P585 for different colors and markets. Firmware is chosen by the model code SM-P585 and your region (CSC), not by the SKU.

SM-P580X

SM-P610X

SM-P620

SM-P605V

SM-P605L

SM-P605K

SM-P625

SM-P907A
The newest firmware for SM-P585 runs Android 8.1.0 (Oreo): build P585JXS3CTL1, released on December 28, 2020.
The latest build for SM-P585, P585JXS3CTL1, was released on December 28, 2020 (5 years ago).
SM-P585 has had no new firmware for 70 months, so regular updates have most likely ended.
Yes, all firmware files for SM-P585 are 100% official, original, and obtained directly from Samsung servers.
To flash SM-P585, 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-P585.