Galaxy S II

How to Update Samsung Galaxy S2 GT I9100 with ICS Android 4.0.1 XXKP2 Firmware

Quick Pre Requisites:

  • Very Important Step, backup all your data present in your Phone memory ONLY using the steps which are mentioned below. Don’t use KIES to back up the data, as you will not be able to use kies after the update as till now SAMSUNG hasn’t rolled out support for Galaxy S2 on 4.0 Firmware. With the help of below mentioned tips, you can easily backup and restore the data present in your phone memory, all the data in sd card will stay intact.

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

  • Ensure that you have disabled all the Security SuitesFirewall tools and also the KIES PC Suite as these tools tend to interrupt the process of firmware update. Also, additionally enable the USB Debugging from the path “Settings > Applications > Development > USB debugging”.

Special instructions for Users on Custom ROM:

Just in case if you are on any of the custom ROM firmwares, ensure that you disable any lag fixes if installed from the recovery mode. The recovery mode can be entered by pressing Volume Down 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.

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Once you are done with all the instructions which are mentioned above, its time to proceed to the procedure which is mentioned in the next page.

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