
Samsung Galaxy Mega 5.8 TD-LTE (China)
The latest firmware for Samsung Galaxy Mega 5.8 TD-LTE (China) (GT-I9158V) is I9158VZMUAPD2 with Android 4.3 (Jelly), released on May 9, 2016 for 1 region (CSC). Every official firmware build for GT-I9158V, 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/I9158VZMUAPD2
All 3 builds in our database run Android 4.3 (Jelly). The newest build, I9158VZMUAPD2, was released on May 9, 2016. No new build has appeared for 127 months, so regular updates for this model have most likely ended.
ㆍIncreased battery usage time
ㆍFaster execution speed of applications
ㆍPerformance improvement by efficient memory management
ㆍapplied the Android regular security patch
ㆍadd Speed Booster Application
- Increased battery usage time
- Faster execution speed of applications
- Performance improvement by efficient memory management
ㆍClosing applications which have not been used automatically
ㆍNotifying unstable applications
- Security Enhancements
ㆍDevice stability improvements, bug fixes.
ㆍNew and / or enhanced features.
ㆍFurther improvements to performance.

GT-I9308

GT-I9268

GT-I9228

GT-I9210

GT-I9108
The newest firmware for GT-I9158V runs Android 4.3 (Jelly): build I9158VZMUAPD2, released on May 9, 2016.
The latest build for GT-I9158V, I9158VZMUAPD2, was released on May 9, 2016 (10 years ago).
GT-I9158V has had no new firmware for 127 months, so regular updates have most likely ended.
Yes, all firmware files for GT-I9158V are 100% official, original, and obtained directly from Samsung servers.
To flash GT-I9158V, 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-I9158V.