Samsung Galaxy S – How to Install Android 4.0.3 Firmware

Sanjana December 24, 2011 0

The one and only much talked firmware now-a-days is none other than Ice Cream Sandwich otherwise known as Android 4.0 version. The Beta versions of this firmware seem to be an everyday affair but then most of them are still in the making, yet to make their debut. Here we will encounter you with an all new ICS build of ROM that chains in the latest Android 4.0.3 version meant for Samsung Galaxy S. However it is to be noted that this is not the official version but is released by third part developers. Applying this update will root your phone which in turn will void its warranty and make sure that you have installed MIUI ROM in your Galaxy S as it is an MTD based ROM.

galaxy s

We wont be responsible for any harm caused to your device during the updation procedure that is unlikely to happen if you follow the instructions carefully. The update procedure is only applicable to Samsung Galaxy S phones that are network unlocked so do not try it in any other devices as it might not be reversible and will harm the device by blocking it.


Backup all the user data present in your phone since chances of data loss or corruption are there. Having a backup can help you to replace the lost data if any damage occurs. Follow the link posted below to backup and restore all your data easily.

Pre Upgrade Instructions for Rooting and Firmware Update

Must Have:

Download Android 4.0.3 ICS Package

Steps to Update Samsung Galaxy S with ICS Android 4.0.3 Firmware:

Step-1: Download Android 4.0.3 ICS Package from the Must Have section to your computer. Connect the smartphone via original USB Cable obtained at purchase time and copy the downloaded zip file to your phone’ SD Card without renaming or modifying it.

Step-2: After copying is done, remove the connected USB Cable and power off your phone to enter into Recovery mode.  The Recovery mode can be entered by pressing the Volume Up key + OK button and holding both press Power button simultaneously. If the device boots up in normal mode, try to enter into Recovery mode repeatedly using the correct button combinations.

Step-3: In Recovery mode choose the option of ”Wipe data/ Factory reset”  to delete all cache files then choose “Wipe Cache partition”. Now choose ”Install zip from SD Card” then select ”Choose zip from SD Card” to choose the ICS zip file placed in your phone. After selecting the file it will take 10-15mins to complete the process of firmware updation. Do not restart or interrupt during the process of firmware updation or it might make the device unstable.

reboot system

Thus the phone will reboot and as the phone gets booted up, you are now on the latest Android 4.0.3 version. In case your device gets restarted on its own continuously, repeat the whole process again from the beginning as mentioned above. If you face any issues regarding Wi-Fi or want to root your phone then you can check out these respective links.

Steps to Fix Wi-Fi Errors in Android 4.0.3 Firmware for Galaxy S

Steps to Root Galaxy S on Android 4.0.3 Firmware

Thus you can easily update your Samsung Galaxy S with the the latest Android 4.0.3 version by following the steps mentioned above.

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