There is now a new update build I9505XXUDMH8 for Samsung Galaxy S4 GT-i9505 and currently hitting in the UK’s unbranded Galaxy S4 devices. The UMDH8 update is still packed on Android 4.2.2 (Jelly Bean) and is not and upgrade to 4.3 yet. This is another minor update released after the previous rolled out of I9505XXUDMGA up to recent firmware builds.
Now, take note this firmware update I9505XXUDMH8 bring the new Samsung Knoxx security apps, that has also been seen on Samsung Galaxy S3 latest update. This firmware came out have SELinux enabled feature that restrict the Samsung Galaxy S4 from super-user exploit. One more thing, it also include a new bootloader, and comes with new warranty status from the inside of the said bootloader, therefore downgrading back to previous or old firmware is hardly difficult and risky for bricking at this time being.
Thanks to our fellas from XDA-developers that has been alarmed about this I9505XXUDMH8 4.2.2 update regarding this new bootloader added issues.
It Seems did after installing the new firmware MGG/MH8
no longer be viable to make a downgrade to a previous firmware through odin, flash fails.
Even through flash ROM-based firmware than good Because even if the flash is successful
you will loose all of the system sounds so calls are impossible …. even advise you to wait more clarification before upgrading.
Again, this UDMH8 update is nothing more on any major changes but only the added Samsung Knoxx apps. So, before you update just make sure to refrain from downgrading back to previous firmware build. It is currently lived now on Kies and weights around 43MB in size.
The Official or stock firmware is available I9505XXUDMH8 below for advance users who used to manually flash using Odin, guide here. And if you want to root I9505XXUDM8, just look for (Chainfire’s) newly updated CF-Auto-Root v1.60 or higher, the old one has failed to worked.
Stock firmware I9505XXUDMH8 Download
If it happens that you already received or get this I9505XXUDMH8 Android 4.2.2 update on your Samsung Galaxy S4 GT-i9505, just share to us how this update performs.