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    Default AT&T Skyrocket II: Unable to upgrade firmware from 2.3.5

    I purchased an unlocked AT&T Galaxy Skyrocket II. it is running Android 2.3.5. The Baseband Version is 1727 UCALC4, which I don't see mention of on these forums

    I activated it through Straight Talk and have a T-Mobile SIM. Functionally, I have not experienced any problems with the phone.

    When I hit the Software Upgrade on my phone, it tries to check the AT&T server and returns "Software is up to date" message".

    I downloaded Kies to my laptop and it wouldn't upgrade.
    I rooted it and re-tried Kies to no avail.

    Does anyone have an idea how I can get to Gingerbread?
    Thanks.
    Last edited by NotJustAPhone; 01-22-2014 at 04:53 PM.
  2. #2  
    UJ95x's Avatar

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    Quote Originally Posted by chisto View Post
    I purchased an unlocked AT&T Galaxy Skyrocket II. it is running Android 2.3.5. The Baseband Version is 1727 UCALC4, which I don't see mention of on these forums

    I activated it through Straight Talk and have a T-Mobile SIM. Functionally, I have not experienced any problems with the phone.

    When I hit the Software Upgrade on my phone, it tries to check the AT&T server and returns "Software is up to date" message".

    I downloaded Kies to my laptop and it wouldn't upgrade.
    I rooted it and re-tried Kies to no avail.

    Does anyone have an idea how I can get to Gingerbread?
    Thanks.
    2.3.5 is Gingerbread. 4.1.2 is Jelly Bean, which is the last/latest update for the S2.
    You can try flashing the stock 4.1.2 firmware with Odin.
    Get them from here: http://www.sammobile.com/firmwares/
    just make sure you use the exact model number

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  3. #3  
    Golfdriver97's Avatar

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    Default Re: AT&T Skyrocket II: Unable to upgrade firmware from 2.3.5

    Quote Originally Posted by UJ95x View Post
    2.3.5 is Gingerbread. 4.1.2 is Jelly Bean, which is the last/latest update for the S2.
    You can try flashing the stock 4.1.2 firmware with Odin.
    Get them from here: http://www.sammobile.com/firmwares/
    just make sure you use the exact model number

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