`` Tutorial to Update Galaxy S I9000 with ICS 4.0.3 RC1 Firmware

How to Update Samsung Galaxy S GT I9000 with ICS 4.0.3 RC1 Firmware

Quick Pre Requisites:

  • Ensure that you have installed the MIUI Custom ROM as it is an MTD based ROM. Please note that if you are on any of the firmwares then you cannot update your device with this firmware.
  • Assuming that you are already on the MIUI custom ROM, you need to ensure that you have taken a backup of all your data so as to just ensure that if any data is lost or corrupted, the same can be restored easily. With the help of below mentioned tips, you can easily backup or restore the data.

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”

  • Disable all the Security Suites, Firewall tools and also the KIES PC Suite as these tools tend to interrupt the process of firmware update. Note that the device is left with the minimum of 60% battery charge so as to ensure that it doesn’t get turned Off in the middle of firmware update.

Special Instructions for Users on Custom ROMs:
If you have installed any Custom ROMs in your phone, then you need to first turn Off your phone to enter into the recovery mode. The recovery mode can be entered by pressing Volume Up Key + OK button, and holding both simultaneously press the Power Button. In recovery mode, select options “Wipe data/factory reset”, “Wipe Cache partition” and after this you need to also select “reboot system” so as to restart the phone.

Note: We will soon come up with an article which will help you in Rooting your Galaxy S on 4.0.3 Firmware.
So, let’s get started to the next page where we will see on what is the procedure to update with this firmware.


  1. Hi, I have tried updating my Galaxy S to IC but when I did this through ODIN it failed and now my phone wont start up, is there a quick fix or is my phone knackered for good ?, Please advise, im totally stuck

  2. need a help friend. please send me your phone number. really need it. i had corrupted my phone.

  3. signature: verification error… unable to upgrade to Android 4.0.. so sad.. :(

  4. hi pradeep,im from asian with firmware zsjpj.can i use this firmware with upgrade to mIUI and the next ICS?please explain procedure upgrade…thkzzz

  5. is it also for galaxy s plus???

  6. after updating my galaxy s with miui,
    my camera doesnt showing panorama mode. why?

  7. Dear pradeep,
    After I updating ICS_4.0.3_MR1-RC4.2_I9000, the sim tool kit as well as sim directory is not available at all…I don’t want to go again for 2.3.6 version..Can you help me in this regard…if do so, let me know…

  8. i have a galaxy s upgraded to 2.3.3. I want to update it to 4.0.3 .so is it strictly necessary to initially update to 2.3.6 xxjvu ? if yes then why only xxjvu ?
    please reply soon !!

  9. can you please make this update for Glaxaxy S plus. People would really appreciate it. thanks

  10. Here is another how to install ICS 4.0.3 on Galaxy S

  11. galaxys_I9000_ICS_4.0.3.zip

    They all give signature verification error.

  12. any ics for galaxy note??? wen will it b available???

  13. i’ve got my samsung galaxy s running on gingerbread XXJVR and when I try to install the zip file
    there becomes a error wich aborts the installiaton
    i’ve tried to instal ics with a lot of different update tutorial and always the same error
    this can’t be normal ?

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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.
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