AT&T Samsung Galaxy S10 users finally getting March security update

NOTICE: We’ve created an archive of all major developments related to the Samsung Galaxy S10 lineup. We are continuously updating that page with latest S10e/S10/S10+ news so that you don’t need to search for information related to the device on daily basis. Head here to access that page.

Involvements from third parties often choke the intended workflow. Take the example of watering your plants – if the city council makes it mandatory to file a no objection certificate before watering each and every plant in your garden, they will be doomed soon enough.

Well, the same situation can be seen with US carriers and their unnecessarily complicated update certification policies. While the global variants of the Galaxy S10 lineup got the March security update at the end of March, US S10 users were stuck with February patch.

s10e_us_asba_ota
The day-one OTA (ASBA) changelog with February patch level

In their official security update portal, Samsung actually admits the laziness of the carriers. According to them:

The list of monthly security update models are subject to change as the regular support period expires. Also, some carriers may only support quarterly updates for all applicable current models listed above.

The global Exynos powered S10 got ASC8 build as March update, which reportedly solved the deep sleep bug. However, Samsung pulled back this particular build due to undisclosed reasons. It was later replaced with ASCA build.

galaxy_s10_asc8_asca_incremental
ASCA update changelog

Interestingly, Sprint became the first US carrier to roll out the March update with the ASC8 tag for Galaxy S10e, S10 and S10 Plus. Besides typical stability patches, the carrier also included important network fixes to correct the LTE/ data connection glitches.

s10_asc8_march_ota_us_sprint
Sprint ASC8 OTA

The rollout was started almost at the end of March. However, the update was not effective to resolve all the connection glitches for Sprint Galaxy S10 users. The carrier even suggested to opt for RMA.

Some publications reported that Verizon was rolling the March update in the form of ASC8 build. However, that was a blatantly incorrect information.

s10_asca_verizon_ota
Alleged Verizon ASCA OTA

Even the build tags and model numbers were different from the Verizon branded version – ‘BGL’ is the country code (CSC) of Bulgaria whereas the ‘F’ models (G973F) are powered by Exynos SoC.

Amidst the confusions, community members spotted a new build (ASD3) on T-Mobile branded Galaxy S10+.

looks like T-mobile will be rolling out the new update soon new build G975USQU1ASD3 from galaxys10

We analyzed the new update and described its April compilation date. The incremental update packages were eventually captured and mirrored by community members.

s10+_asd3_firmware.science

Because of the nature of the OTA packages, they are compatible with every US carrier branded model and can be manually sideloaded.

Works for all carriers. No data loss here 24 hours later. Perfect! Verizon and no issues.

Its not just for tmobile

(Source)

A T-Mobile representative later confirmed the existence of the build.

T-Mobile March Update is rolling out now in batches, per Rep. Fixes FPS and Camera. from galaxys10

On April 8, Verizon officially added the ASD3 build in the update tracker pages of the Galaxy S10e, S10 and S10+.

Release date: 04/08/2019
Android™ Security Patch Level: March 1, 2019
Software Version: PPR1.180610.011.G97xUSQU1ASD3 (x can be 0/3/5)

What’s changing:

The current software update provides your device with:

– The most up to date Android security patches

– System enhancements

– Performance improvements

Users also reported about getting the OTA update.

Verizon update is now out. from galaxys10

Among the major four carriers, AT&T was mocked heavily due to their laziness.

Nevertheless, the update is reportedly live for AT&T Galaxy S10 users.

s10_at&t_asd3
Image source: reddit

As you can see, AT&T replaced the generic Samsung updater with their own ‘uglier’ version. The OTA prompt is fairly minimal and doesn’t even mention the security patch level or the build number. Anyway, users have already shared those info.

Downloading, Thanks!

Edit: Version G975USQU1ASD3

(Source)

The fingerprint reader is notably faster after the update (we already mentioned it in our previous article).

AT&T strictly prohibits Samsung to upload these firmware variants to their OTA update servers, thus it is not possible to download them using Frija or similar utilities.

frija_1
Frija can download Samsung firmware (Click/Tap to zoom)

Nonetheless, the incremental (delta) update packages can be downloaded from the following mirror links provided by firmware.science:

FYI, AT&T is still listing the ASBA build as latest one in their Galaxy S10 update tracker.

s10_at&t_update_tracker

It’s worth mentioning that the US unlocked Galaxy S10 models are still stuck with the day-one (ASBA) build for a month or so. PiunikaWeb is closely monitoring the rollouts, so stay tuned for new articles on the updates from us.

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Kingshuk De

I came from a mixed background of Statistics and Computer Science. My research domains included embedded computer systems, mobile computing and delay tolerant networks in post-disaster scenarios. Apart from tinkering with gadgets or building hackintosh, I like to hop on various subreddits and forums like MyDigitalLife and XDA.