1. eek2002's Avatar
    The model is G900A .It has 5.0 version software won't update I try using the AT&T Sim card it didn't work I'm using cricket wireless. I want the new Marshmallow update keeps saying update is current. I want to install the new 6.0 ....build last letters OF3. ...mine way out of date. How can I do this. I'm a new guy trying to do this I know I'll have use a computer to flash or whatever it takes to do it. I try Samsung Smart Switch says current up to date....please help me to do this. Thank you. Bootloader is also unlock.
    10-18-2016 05:46 PM
  2. ironass's Avatar
    I'm guessing that you unlocked the AT&T bootloader on model G900A, when you were on Android 4.2 or 4.4 and then upgraded to Android Lollipop by using an adapted AT&T firmware that allowed you to retain the unlocked bootloader. This would preclude it from updating OTA. Unfortunately, AT&T do not release their firmware through the usual Samsung sources, so that users can flash their phones.
    eek2002 and Laura Knotek like this.
    10-18-2016 08:47 PM
  3. eek2002's Avatar
    I bought the unlock S5 AT&T I haven't done anything to it yet. I just use cricket wireless. What do I need to do flash my phone has 5.0 ....to 6.0 I'm new at flashing what all do I need to do. I'm not afraid to try it.
    10-18-2016 09:27 PM
  4. ironass's Avatar
    See, Galaxy S5 Android™ version 6.0.1, Marshmallow (G900AUCU4DPH3) release. Read the thread, carefully and thoroughly, before attempting to flash the firmware.
    Laura Knotek and eek2002 like this.
    10-18-2016 09:38 PM
  5. eek2002's Avatar
    Thank you
    10-18-2016 09:46 PM
  6. eek2002's Avatar
    What method do I use, new version. Last 3 build OF3
    10-18-2016 09:59 PM
  7. ironass's Avatar
    What method do I use, new version. Last 3 build OF3
    Could you elucidate.
    10-19-2016 06:08 AM
  8. eek2002's Avatar
    What install would I use for the 6.0 I'm new at this I'm very sorry. My software is 5.0 AT&T unlocked. I'm using cricket wireless. I want to install the update myself I read what information you sent. I don't know what to use, something PA2, PA3 my last build numbers are OF3. Which one would I use to start the new update. I'm sorry I'm not good explain what im trying to say, do you need the whole build number? LRX21T.G900AUCU4BOF3

    Thanks
    10-19-2016 01:11 PM
  9. Feldon's Avatar
    What install would I use for the 6.0 I'm new at this I'm very sorry. My software is 5.0 AT&T unlocked. I'm using cricket wireless. I want to install the update myself
    Pretty sure that's not possible. I think you'll have to reactivate it on AT&T to get to 6.0.1. Could be wrong.
    10-19-2016 01:21 PM
  10. eek2002's Avatar
    I put ATT Sim card in it use wifi said update current.
    10-19-2016 02:56 PM
  11. ironass's Avatar
    Download and flash the latest AT&T release, G900AUCU4DPH3. Be warned. this may lock your bootloader... just in case you need a custom recovery on your phone for any reason.
    eek2002 and Laura Knotek like this.
    10-19-2016 04:34 PM
  12. eek2002's Avatar
    Ironass, what would you suggest another S5?
    10-19-2016 05:12 PM
  13. eek2002's Avatar
    I got it done finally, thank you....no problems with it at all. Thank you. I also found out Best Buy has a Samsung Rep that will update it also. I called to see make sure, yes they do G900A. ....
    10-19-2016 07:05 PM

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