Galaxy S2 Official Jellybean 4.1.2 XXLSJ Firmware Update with 50GB Dropbox Space

Jellybean 4.1 LogoGood News for Galaxy S2 is finally out and in the due course of this article we will be checking out on how you can actually install the same with a detailed guide. This firmware for Galaxy S2 is dubbed as Jellybean 4.1.2 firmware of which there is still no ETA on by when it will be rolling out officially but it is pegged to roll out very soon. If you are the one who hates to wait then this guide is just for you so that you can manual update with this jellybean 4.1.2 build. Unfortunately, there are still no details on by when Jellybean 4.2 will be out but till then you can enjoy this firmware.

We have summed up express pre requisites and then after that we have summed up a detailed guide on how to apply this firmware update. Please note that for applying this update you need not root your device and also applying this update won’t void the warranty in any manner. Also, just in case if you have already rooted the device then the root access will be revoked, we will soon be coming out with a detailed guide which will help you Root Galaxy S2 on Jellybean XXLSJ 4.1.2. The most awesome part about this firmware is that it’s the Official firmware which got released from Samsung and is dubbed as XXLSJ as the build number and the baseband version as XXLS6. As of now this update is not yet available for Galaxy S2 I9100G smartphone.

Good News: Some users who have updated with this Firmware are reporting that they are getting FREE 50GB Dropbox Space.

Pre Requisites:

Create a backup of all the data with the help of below mentioned steps so as to make sure that just in case if the data gets wiped off or gets corrupted, the same can be restored with the help of below mentioned steps. Don’t create a backup of data with the help of KIES or ROM Manager as you may not be able to restore the data again.

SMS – Use “SMS Backup & Restore app”,
Contacts – Sync with the Gmail application,
Call Log -Call Log and Restore
Images, Songs, Videos, Files – Copy to internal / External SD Card,
APN and MMS Settings – Note down from the path “Applications > Settings > Wireless and Network > Mobile Networks > Access Point Names

Enable the USB Debugging from the path “Settings > Applications > Development > USB debugging” and also you will have to ensure that the minimum battery life should be 30% so as to ensure that the phone doesn’t get turned Off in the middle of update. Disable / uninstall all the security suites installed in your phone.

Disclaimer: Follow all the instructions mentioned in this article as if there is any damage caused due to not following instructions then we shall not be held liable or responsible. Just in case if you face any issues then we will try our level best to address the same.


Let’s head to the next page where we have summed up a detailed article on how to apply this firmware update.

About Pradeep Neela

Friends call him Droid Geek because he tries out different ROM’s everyday and helps droid users experience better features on their devices. Add +Neal Pradeep on Google Plus for more Updates.