SamMobile has affiliate and sponsored partnerships. If you buy something through one of these links, we may earn a commission.

News For You
News For You
Notifications

Galaxy S21’s carrier-locked variant is getting the August 2021 security update

Firmware
By 

Last updated: August 4th, 2021 at 14:07 UTC+02:00

Five days ago, Samsung started rolling out the August 2021 security update to the Galaxy S21 series in China. Earlier today, the company released it to the international variants of the Galaxy S21. Now, the carrier-locked units in the Galaxy S21 series have started getting a new update.

Samsung has released a new software update to the Galaxy S21, Galaxy S21+, and the Galaxy S21 Ultra on Xfinity Mobile's network in the US. The software has firmware version G99xUSQU4AUGE and includes the August 2021 security patch. The company has explained on its website that its latest security patch fixes 40 privacy and security-related vulnerabilities. The update might not include any new features or user-facing UI changes.

If you are a Galaxy S21, Galaxy S21+, or Galaxy S21 Ultra user on Xfinity Mobile's network in the US, you can check for the update by navigating to Settings » Software update and tapping on Download and install. You can also choose to flash the firmware manually after downloading the latest firmware file from our firmware database.

Samsung is expected to release the update to Galaxy S21 series devices on more US networks over the next few days. The phones were launched earlier this year with Android 11-based One UI 3.1. They have been getting monthly security updates since their release. The phones will get three major Android OS updates, which will take them to Android 14 towards the end of their lifecycle.

FirmwarePhone Galaxy S21Galaxy S21 PlusGalaxy S21 Ultra
Galaxy AI summarized

Scroll for more related content
News For You

You might also like

Quickly create GIFs using the camera on your Galaxy smartphone

Quickly create GIFs using the camera on your Galaxy smartphone

Do you like sharing GIFs on social media and messaging apps? Do you also like creating your own GIFs instead of just sharing what’s already available in the apps you use or the keyboard you type on? Galaxy smartphones offer several methods of creating GIF files. One of those involves swiping and holding the shutter […]

  • By Abhijeet Mishra
  • 1 week ago
Checking for updates on your Galaxy phone and getting nothing? You’re not alone

Checking for updates on your Galaxy phone and getting nothing? You’re not alone

Have you been wondering why your Galaxy smartphone has not notified you of a new update this month and why there's nothing available even when you check for updates manually? Well, you're not alone. Samsung releases monthly security updates for several Galaxy smartphones, and it rolled out the November 2024 update for some devices at […]

  • By Abhijeet Mishra
  • 1 week ago
Latest Galaxy S21 software update gets a wider rollout

Latest Galaxy S21 software update gets a wider rollout

Samsung released the November 2024 software update to the Galaxy S21 series last week, and following a few days of limited availability, that update is getting a wider rollout. Some Asian countries have started receiving the update this week, and more countries—in Asia and other regions—should join the party over the coming days. The November update […]

  • By Abhijeet Mishra
  • 1 week ago
Galaxy S21 gets more secure with November 2024 update in USA

Galaxy S21 gets more secure with November 2024 update in USA

Samsung has released a new software update to the Galaxy S21 series in the USA. The update makes the phones more secure with the help of the November 2024 security patch. Unlocked Galaxy S21 units get November 2024 update in USA The factory-unlocked units of the Galaxy S21, Galaxy S21+, and Galaxy S21 Ultra have […]

  • By Asif Iqbal Shaik
  • 2 weeks ago
Samsung’s final One UI 7.0 release roadmap may have been uncovered

Samsung’s final One UI 7.0 release roadmap may have been uncovered

There's been some back and forth about Samsung's release plans for One UI 7.0, but we may have finally pinpointed the company's tentative release roadmap, starting with the beta program. Samsung's One UI 7.0 release program will reportedly look something like this: Galaxy S24 will get the first One UI 7.0 public beta build in […]

  • By Mihai Matei
  • 2 weeks ago
Samsung India offers free screen replacement to phones with green line issue

Samsung India offers free screen replacement to phones with green line issue

Some Samsung phones have been suffering from a “green line issue.” For some such phones, the company is offering one-time free screen replacement in India. Those phones include the Galaxy S21 series, Galaxy S21 FE 5G, and the Galaxy S22 Ultra. Galaxy S21, S21 FE, and S22 Ultra get free one-time screen replacement Samsung is […]

  • By Asif Iqbal Shaik
  • 3 weeks ago