How to Update T Mobile Samsung Galaxy S2 T989 with Default Stock Firmware

T Mobile S2 LogoWith many Custom ROMs in place and need for the official Stock default ROM firmware becomes evident. So, just in case if your phone is messed up with all such customizations and wish to get back to the default version then in the due course of the article we will see on how you can get back to the stock version easily without any hassles. Please note that this process can only be applied to all the phones which have the model number of the phone as Samsung Galaxy S2 “SGH T989” which is generally with the T Mobile users.

Rooting Information: Just in case if you have already rooted the phone then in the procedural instructions you can skip the process of the Clock Work mod Recovery installation, as rooted phones comes with the CWM by default.

If you have not rooted the phone then you need to follow all the instructions which are mentioned in the due course of this article. For your simplicity we have broken this article into two different pages wherein in this page we will see on what are the list of pre requisites and in the next page we will see on what are the instructions to update the phone. This procedure will be helpful for all the users who wanted to reclaim the warranty as you will be updating your device to the factory firmware.

Disclaimer: We at Android Advices have taken due care that all he instructions are properly mentioned but we should not be held responsible for any damage done to your device which is very unlikely if you follow all the instructions as mentioned in the article.

Pre requisites:

  • Since it’s a wipe version all the data which is there in the phone will be wiped off completely. With the help of the simple tips which are mentioned below you can take the backup so that you can restore back the corresponding things if any data is deleted.

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

  • After this you need to ensure that the phone is charged with the minimum of 60% so as to just ensure that the phone doesn’t get turned Off in the process of the firmware update.
  • Ensure that all the tools like PC Suites, Firewalls and other Antivirus tools should be completely closed so that these tools doesn’t hamper the firmware update process.

So, now let’s proceed to the next step where we will see the list of instructions which you need to follow to get back to the stock ROM.

14 comments

  1. Non working links worthless!

  2. mach 1 android 4.0 less then six hrs. to go ya!!!

  3. The link is not working? please relink the download link…..

  4. Richard Grandorge

    Great solution and it works fine now, thanks so much as I was looking at things like install again etceteras.

  5. Hi there, I recently update the latest firmware on my galaxy s 11 and now the app ( Polaris office ) when ever I try to open a excel file it says : The application polaris office 9 process com.infraware. polarisoffice ) has stopped unexpectedly. please try again. and below that it says FORCE CLOSE. So from the update I am unable to access my files. Can some body please help me…thank you much…

  6. My t-mobile 989 unlocker keeps restarting whenever loses the carrier signal. How do I fix this?

  7. The link is not work: Official Stock Firmware Zip Package .
    Please could fix?

  8. where is the zip file..??
    the link you have given is leading to another page of your site.