Update Samsung Galaxy S2 to Android 4.1.2 Root Box Firmware - Samsung Update

The New Stuff

Samsung Update

Android 4.1.2 was officially released a few days ago for Nexus 7 and also the Google Nexus family smartphones. As a result developers started coming up with custom firmwares for the Galaxy S3 and now at a last, in the lack of an official update, for the Galaxy S2.

Before going on any further, you should know that this update is only working for Galaxy S2 GT i9100 models (Check Settings, About Phone, Model Number). So if you are the owner of a different device, you should not proceed any further unless you just want to learn more about how to install a custom ROM.

Also, before proceeding with the update, you have to make sure your device is ready for it. You will need:

- A rooted Galaxy S2 (For more information about how to root Galaxy S2 visit our tutorial)

- Because the updating process is not 100% safe, you should perform a full data backup in order to protect your personal data in case anything goes wrong

- You have to turn on USB Debugging by accessingSettings, Applications, Development, USB debugging.

- You must not have any antivirus software installed

- You need at least 1GB free space on the SD card

Meanwhile, here’s what the new 4.1.2 Root Box custom firmware offers: Jelly Bean base, HSPA+ Support, A2DP Support, OTA Update, AOKP, ExTweaks, T9 dialer.

How to update Galaxy S2 to Android 4.1.2?

Step1: Download the Root Box 4.1.2 Custom ROM for Galaxy S2 i9100 from here.

Step2: Download the Google Apps package from here.

Step3: Connect the SGS2 to the USB port and copy the files you downloaded on the root folder of the SD card.

Step4: Unplug the SGS2 from the USB port and turn it off. Enter Recovery Mode ( Hold Volume Up, Middle button and Power)

Step5: While in Recovery Mode press <Wipe data/factory reset> and < Wipe Cache partition>.

Step6: Press <install zip from sdcard> and select <choose zip from sdcard>. Look for theRoot Box 4.1.2 Custom ROM and the Google Apps package and select them.

Step7: The update will take a few minutes to install. Press<Go back> and <Reboot System now>. This should restart the SGS2 in normal mode. This reboot usually takes longer.

Important: If the device gets stuck at any point, just restart the phone by pulling the battery and start all over again.

Your Samsung Galaxy S2 now has Android 4.1.2 Root Box Custom Rom installed and ready to roll.

Tudor Graur

Full time Androider, Blogger and Entrepreneur. I like Samsung, but I'm also a dedicated Nexus fan. Keep an eye on my posts to learn everything about the latest firmware, ROMs and apps.

More Posts - Facebook - Google Plus

Recently Published

Android 5.0 Update
»

Android 5.0 Lollipop Update for the Galaxy S Series Smartphones (S5, S4, S5 Mini, S3 and S5 Active)

Ingenuity, innovation and power are just but a few of the words that ...

Google Android Auto
»

Cars Running Android Auto and CarPlay to Become Mainstream in 2015

Apple and Google have both established dashboard tech sync with ...

Galaxy S6
»

Samsung Galaxy S6 Launching on March 1 – Expected Features

Rumor has it that Samsung is to release Galaxy S6 soon. This variant ...

Galaxy S6 Launch
»

Galaxy S6 Release Date – March 1

We’ve all been looking forward to the launch of Sammy’s next ...

Android 5.1
»

When Is Google’s Android 5.1 Lollipop Coming?

Already, Google 5.0.1 Lollipop is the new kid on the block, having ...

Loop Pay
»

Samsung Goes After Apple With New Payment Service

Samsung’s recent acquisition of US based startup LoopPay is big ...