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Fixing the Wi-Fi Bug in Galaxy S GT-I9000 Running Android 4.0.3 ICS RC 4.1

February 22, 2012

Samsung Galaxy S users are beginning to enjoy ICS on their devices, however some users are facing issues with Wi-Fi connections, particularly those who have updated to Android 4.0.3 ICS RC 4.1.

Galaxy S users who have installed the ICS RC 4.1 unofficial update on their Galaxy S have reported experiencing unstable Wi-Fi connections.  Thankfully, a fix has been released to address the issue.

In this article, you will learn how to apply the update to fix the Wi-Fi bug in Android 4.0.3 Ice Cream Sandwich RC 4.1.

Requirements and Reminders

  • The fix works only on the Samsung Galaxy S GT-I9000 running Android 4.0.3 Ice Cream Sandwich RC 4.1.
  • If your Wi-Fi is working properly, you don’t need to apply the fix.
  • Before you flash the updates, make sure you create a backup to protect your phone data. You don’t want to have your phone updated while losing some of the important data on your mobile phone.
  • Keep your phone battery at maximum to make it last throughout the entire procedure.
  • Disable all lag fixes on your phone.
  • This update works with a rooted Samsung Galaxy S with XXJVU firmware. Check out our XXJVU installation guide here, and our rooting guide here.

If you’re ready, let’s now begin updating your mobile phone into Android ICS.


  1. Get the Wi-Fi Fix package here or here.  Save it to your computer but do not extract the file’s contents.
  2. Connect your phone to your computer.
  3. Copy the downloaded package to your phone.
  4. Disconnect your phone from your computer.
  5. On your phone, go to Settings > Applications > Development > USB debugging and enable USB Debugging mode.
  6. Turn off your mobile phone and wait until it is completely turned off.
  7. Press and hold the Volume Up key and Home button (middle key) simultaneously while tapping the Power button to boot into Recovery mode.
  8. Perform a factory reset by selecting “Wipe data/factory reset” and confirm the action on the next screen.
  9. Clear out all the data in your cache by selecting “Wipe Cache Partition” and confirm the action on the next screen.
  10. Go back to the main menu and select “install zip from sd card.”
  11. Select “choose zip from sd card” and find the package file you’ve transferred earlier.
  12. Wait until the files are successfully installed in your device.
  13. Go back to the main menu and select “reboot system now” to restart your phone.

Great job! You have successfully repaired the Wi-Fi bug on your Samsung Galaxy S with RC 4.1 Android ICS 4.0.3 firmware. You can now enjoy  the ICS experience without having to worry about your Wi-Fi connection.