
Samsung Galaxy Core Lite (TD-LTE)
The latest firmware for Samsung Galaxy Core Lite (TD-LTE) (SM-G3588V) is G3588VZMUAPE1 with Jelly(Android Bean), released on May 11, 2016 for 1 region (CSC). Every official firmware build for SM-G3588V, 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/G3588VZMUAPE1
All 2 builds in our database run Android 4.3 (Jelly). The newest build, G3588VZMUAPE1, was released on May 11, 2016. No new build has appeared for 127 months, so regular updates for this model have most likely ended.

SM-G3589W

SM-G3509

SM-G357M

SM-G3568V

SM-G355M
The newest firmware for SM-G3588V runs Android 4.3 (Jelly): build G3588VZMUAPE1, released on May 11, 2016.
The latest build for SM-G3588V, G3588VZMUAPE1, was released on May 11, 2016 (10 years ago).
SM-G3588V has had no new firmware for 127 months, so regular updates have most likely ended.
Yes, all firmware files for SM-G3588V are 100% official, original, and obtained directly from Samsung servers.
To flash SM-G3588V, 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-G3588V.