U.S. carriers will upgrade their Samsung Galaxy S III devices to Jelly Bean starting this week. The first to make the update was Sprint, but AT&T will follow in its footsteps shortly after, CNET News informs.

Customers who prefer Samsung Galaxy S III to other mobile makers will benefit of many more advantages from now on. The majority of the mobile carriers in America announced on December 4 that they will soon update Galaxy S III to Jelly Bean. Sprint was among the first carriers to make the change, but Samsung has prepared a new update for AT&T, as well.

The upgrade for AT&T Samsung Galaxy S III is available through the software of the South Korean company, Kies. The device has to be connected first to a Mac or a PC because OTA is not possible for the moment.

The Jelly Bean update was long awaited by customers because it can significantly improve the performance of the device. Once the update has been added to Galaxy S III, owners will benefit of home screen mode and block screen mode. New features will be added, such as, Swype and Music Hub, whereas the setting menu, the quick panel UI and the Facebook support will undergo various modifications.

Samsung notified people that any custom APNs that have been created before the update will be deleted during the installation of the Jelly Bean upgrade. These can, nevertheless, be easily reconfigured by simply selecting the option Access Point Names under Mobile Networks.

Since the software Kies is required in order to complete the update, Samsung has made it available both on their official website, as well as the websites of other partners. After the download of the software, the device must be synchronized with Kies in order for Galaxy S III to receive the update.

Verizon is the only carrier that doesn’t have an update for Samsung Galaxy S III. Rumor has it that the Verizon update will be available on December 14, but the company has yet to confirm the news.