
Samsung GALAXY Grand 2
The latest firmware for Samsung GALAXY Grand 2 (SM-G7108V) is G7108VZMUAPE1 with Android 4.3 (Jelly), released on May 16, 2016 for 1 region (CSC). Every official firmware build for SM-G7108V, 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/G7108VZMUAPE1
All 3 builds in our database run Android 4.3 (Jelly). The newest build, G7108VZMUAPE1, was released on May 16, 2016. No new build has appeared for 127 months, so regular updates for this model have most likely ended.
Specifications of SM-G7105, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.

SM-G710S

SM-G715A

SM-G720N0

SM-G611S

SM-G610S
The newest firmware for SM-G7108V runs Android 4.3 (Jelly): build G7108VZMUAPE1, released on May 16, 2016.
The latest build for SM-G7108V, G7108VZMUAPE1, was released on May 16, 2016 (10 years ago).
SM-G7108V has had no new firmware for 127 months, so regular updates have most likely ended.
Yes, all firmware files for SM-G7108V are 100% official, original, and obtained directly from Samsung servers.
To flash SM-G7108V, 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-G7108V.