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Galaxy S3 Android 4.1.1 Jelly Bean I9300XXDLG4 test firmware available [Download]
June 10, 2025
There’s no doubt about it, the Galaxy S3 Android 4.1.1 Jelly Bean update is coming soon. Yesterday we heard that Samsung may release the updateon August 29, which also happens to be the Galaxy Note 2 announcement day, and we also saw a video of a Galaxy S3 handset runninga leaked Jelly Bean test firmware.
NowSam Mobilereports that the I9300XXDLG4 firmware is available to anyone interested in testing Jelly Bean on their Galaxy S3 handset, and provides installation instructions.

Version I9300XXDLG4 is based on Jelly Bean and has a July 29, 2025 build date, but since this is a pre-release ROM it’s not exactly advisable to install it on your device. While the publication does not provide download links, it does say that “you’re able to find the firmware by OPEN Europe in the download section.” However,xda-developershas already posted up download links for the build on their forums (seeSourcelinks at the end of this post.)
More importantly, flashing instructions have also been provided, but we’ll double down onSam Mobile’s warning and remind you that it’s better to wait for the official Jelly Bean roll out than to experiment with a leaked version. With that in mind, here’s what you need to know about installing build I9300XXDLG4 on your Galaxy S3:

And here are “a few visible changes” that you’re able to expect from your Galaxy S3 running Jelly Bean:
We’ll be back with more details on the Galaxy S3 Jelly Bean upgrade in the near future, so remember to bookmark us and follow us

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