It was the last time when we saw on how to root your T Mobile Samsung Galaxy S II T989 on the latest ICS Android 4.04 firmware, but just in case if you haven’t got any update as of now yet then we will help you install this latest Official firmware. This is the manual way of updating the firmware and if you are on the custom ROM firmware or say on any other beta firmware then you will be easily able to upgrade the firmware. This new ICS firmware comes with many new add on features along with a whole new layout of ICS. Please note that this process of firmware update will only support T989 model and not any other models.
Disclaimer: We should not be held liable for any damage caused in the process of rooting your T-Mobile Samsung Galaxy S2 T989. It is very unlikely that your device will be damaged if you follow all the instructions to the point which are mentioned in procedure.
Over a period of this article we will be checking out on the detailed list of pre requisites you need to follow along with the detailed guide on how to apply this firmware.
- Back up all the user level data present in your device with the help of below mentioned instructions. Don’t use KIES to back up the data as it may or may not support the device after the update. Also, you need to ensure that you are on the latest version of KIES so as to connect your device with the computer.
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”
- You will have to enable the USB Debugging Mode from the path “Settings > Applications > Development > USB debugging”. Ensure that the USB Debugging option is enabled. A minimum of 50% battery should be there in your phone so as to make sure that it doesn’t get turned Off in the middle of firmware update.
So assuming that you have followed all the above pre requisites, you can now proceed to the next page where we have summed up a detailed tutorial on how to apply this update.