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After rollback to android 9 to 10 it's not upgrading to android 10

  1. Q1535191402029
    Cupcake Jan 19, 2020

    Q1535191402029 , Jan 19, 2020 :
    View attachment 1235400
    Hello, I was facing some issues from android 10, so I rollback to Android 9 and now I waana again want to upgrade to android 10 but after downloading full setup and at the time of installation it's showing installation failed, what to do now?
     

    #1
  2. Kytharsis
    Nougat Jan 19, 2020

    Kytharsis , Jan 19, 2020 :
    Why did you downgrade?
     

    #2
  3. Caomhin
    KitKat Jan 19, 2020

    Caomhin , via OnePlus 6T , Jan 19, 2020 :
    If you are not on US TMobile variant.

    You can download and manually install 10.3.0 for the International version from the OnePlus support website below. Follow the instructions given on the OnePlus website. Make sure you have backed up your phone first.

    You shouldn't lose anything as its an upgrade but always make sure you have backed up your phone first, as you never know what can happen when installing a major upgrade such as this.

    https://www.oneplus.com/ie/support/softwareupgrade
     

    #3
    DrJMun likes this.
  4. DrJMun
    KitKat Jan 19, 2020

    DrJMun , Jan 19, 2020 :
    Hmmm you were at 9, upgraded to 10...weren't happy with 10 and so went back to 9 and now you wish to go back to 10? What makes you think 10 will be better for you the second time around? Why unhappy with 9?
     

    #4
    Caomhin and Kytharsis like this.

  5. #5