Procedure to Update Galaxy S Advance I9070 with Jellybean 4.1 Styled Firmware:
Download the Jellybean Styled Firmware for Galaxy S Advance I9070
smartphone from here to your computer. Once downloaded, connect your
phone to the computer with the help of original USB Cable and then place
the zip file in the device.
Once placed, disconnect the device and download the ROM Manager
app from the Google PLAY Store so that you can then enter the device in
the recovery mode. Alternatively, you can also enter your phone in the
recovery mode with the help of below mentioned manual step.
Recovery mode in Galaxy S Advance I9070 can be entered manually by
holding the Volume Up button + the Home key button (the middle button).
While holding...