In a bid to experience the first Jellybean 4.1.2 feature right in your Samsung Galaxy S3 GT I9300 smartphone. Though there is no ETA on by when there will be the Jellybean 4.1.1 or 4.1.2 firmware version will be out Officially but all thanks to the custom ROM firmware makers who are constantly working harder to come up with the stable builds of custom ROM firmware. Over a period of this article we will be checking out on what are the list of pre requisites you need to follow along with a detailed guide on how to apply this firmware update. This custom ROM firmware is brought to your by the Root Box team, all thanks to bajee11 for developing the firmware.
Express Pre Requisites:
- First up you will have to make sure that your Galaxy S3 device is rooted, this can be checked with the help of “Root Checker” app from the Google PLAY Store. If your S3 is not rooted, you will have to follow the below mentioned 3 steps so as to root the device. Also, once the device is rooted, download and install the “ROM Manager” app from the Google PLAY Store itself.
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.
- Your precious data should be backed up so as to make sure that just in case if the data gets erased / corrupted, you should be in a position to restore the same. So, with the help of below mentioned manual steps you will have to create the backup.
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”
- Minimum battery level left in your phone should not fall below 30% so as to make sure that it doesn’t get turned Off in the middle of firmware update. From the path “Settings > Applications > Development > USB debugging”, enable the USB Debugging, ensure that the USB debugging option is ticked.
- Disable / uninstall all the antivirus tools present in your device as it may interrupt the process of firmware update. You will be requiring the external SD Card with almost 1 GB of free space so that the custom ROM firmware package can be placed in the same.
Features of Root Box Jellybean 4.1.2 Firmware:
- Based on JB 4.1.2 – Built from RootBox Sources (Teamhacksung, CM & AOKP)
- HSPA+ Support
- A2DP Support
- T9 Dialer
- Cherry picked fixes from CM
- OTA Update
- ExTweaks integrated in Settings – if ExTweaks installed in /system/app
- Init.d Support
- AOKP Features
So once you are done with the above mentioned steps, you can head over to the next page where we have summed up the detailed instructions to apply this update.
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