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Support Galaxy S4- going back to KitKat?

Discussion in 'Android Help' started by Android Question, Mar 19, 2016.

  1. Android Question

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    Hello.

    I just bought a "new other" Samsung GS IV (I-337 AT&T model) off ebay. It appeared to be fully new. I charged the battery to 100%, and then began setting up the phone - migrating and updating apps, etc. It has used about 25% of the battery in an hour. Maybe this is typical for setting up a new phone? Anyway, it made me concerned about what kind of battery life I can expect going forward. I did note that it is android 5.0.1.

    I may or may not have a problem with battery life, time will tell. However, is it possible to downgrade to 4.4.4 kitkat?
     

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  2. electricpete

    electricpete Android Expert
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    Jan 7, 2012
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    I had an AT&T Galaxy S4. Instructions for flashing are fairly complicated - depends on where you start... may need to go among several versions to get where you want. So don't follow instructions unless you're sure they apply to a phone with your existing software configuration

    Summary here:
    http://forum.xda-developers.com/showthread.php?t=2616221

    They summarize the software versions with two letters and a number, which are the last three characters of the build number. Conversion among build number and android version in the table here:
    https://www.att.com/esupport/article.html#!/wireless/KB419415
    OK2, OC3, OC4 are Android 5.0.1
    NJ4, NJ5 Android 4.4.4
    NI1, NB1 Android 4.4.2
    MK2 Android 4.3

    So,. what is your existing build number?
     
  3. mikesdak

    mikesdak Lurker
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    build no LRX22C.I337UCUGOC4
     

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