
Samsung Galaxy Tab A 9.7
The latest firmware for Samsung Galaxy Tab A 9.7 (SM-P555L) is P555LKLS1CTI2 with Android 5.0.2 (Lollipop), released on September 10, 2020 for 1 region (CSC). Every official firmware build for SM-P555L, 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/P555LKLS1CTI2
All 6 builds in our database run Android 5.0.2 (Lollipop). The newest build, P555LKLS1CTI2, was released on September 10, 2020. No new build has appeared for 74 months, so regular updates for this model have most likely ended.

SM-P555Y

SM-P550

SM-P355Y

SM-P580X

SM-P588C
The newest firmware for SM-P555L runs Android 5.0.2 (Lollipop): build P555LKLS1CTI2, released on September 10, 2020.
The latest build for SM-P555L, P555LKLS1CTI2, was released on September 10, 2020 (6 years ago).
SM-P555L has had no new firmware for 74 months, so regular updates have most likely ended.
Yes, all firmware files for SM-P555L are 100% official, original, and obtained directly from Samsung servers.
To flash SM-P555L, 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-P555L.