
Samsung GALAXY Win DUOS
The latest firmware for Samsung GALAXY Win DUOS (GT-I8558) is I8558ZMUAOH1 with Android 4.2.2 (Jelly), released on August 19, 2015 for 1 region (CSC). Every official firmware build for GT-I8558, newest first: one row per build with all regions (CSC) that received it.
All 3 builds in our database run Android 4.2.2 (Jelly). The newest build, I8558ZMUAOH1, was released on August 19, 2015. No new build has appeared for 136 months, so regular updates for this model have most likely ended.
The newest firmware for GT-I8558 runs Android 4.2.2 (Jelly): build I8558ZMUAOH1, released on August 19, 2015.
The latest build for GT-I8558, I8558ZMUAOH1, was released on August 19, 2015 (11 years ago).
GT-I8558 has had no new firmware for 136 months, so regular updates have most likely ended.
Yes, all firmware files for GT-I8558 are 100% official, original, and obtained directly from Samsung servers.
To flash GT-I8558, 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-I8558.