[VoLTE on AT&T] US unlocked Samsung Galaxy S10 September security update goes live

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New updates are being added at the bottom of this story…….

Remember when international Exynos powered Galaxy S10 units got dedicated camera night mode, but Samsung delayed the same for US Snapdragon models for months? Well, the race between these two variants took a different turn this month, at least in the terms of security patches.

The people behind the (in)famous firmware.science project managed to get their hands on the incremental update packages. One can sideload them on their Verizon, T-Mobile or Sprint Galaxy S10e/S10/S10+ running August build (BSGJ).

AT&T, on the other hand, pushed a different build (ASGK) as August update so there is no straightforward way to install the leaked September patch on Galaxy S10 units from this particular carrier. T-Mobile did not break the pattern and started rolling out the same BSI4 build as this month’s OTA since yesterday.

Earlier today, Verizon registered themselves in the same roster. They marked the OTA as ‘System Update 7‘, albeit the underlying software version is still BSI4. However, there is no sign of the September update for global Galaxy S10 units at the time of writing this article.

The carrier unlocked variant of Galaxy S10 family (U1) usually follows a slightly different update path. They recently got a second monthly update with August security patch (build number BSGL), which also introduced navigational haptic feedback.

Apparently you can already download the September update for your unlocked Snapdragon Galaxy S10 from Samsung servers using utilities like Frija. The build number of the new update is BSIA, which means it is quite newer than the carrier software versions.

As you can see, the bootloader version is still v2 which allows end users to downgrade to compatible older builds. We are not sure when Samsung will start full fledged distribution, but at least you now have a choice to get the most up-to-date software on your unlocked Galaxy S10e/S10/S10+.

Unfortunately we can’t get any kind of changelog for this update yet, as Samsung update trackers are still pointing to the older BSGL build as the later one. Do let us know if you can find some kind of a new feature after flashing.

The US Unlocked Galaxy S10 users can use VoLTE on AT&T network after the September update. The carrier model also gets the new security patch as ASI6 build. Details here.

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