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How to to downgrade to oxygen os 9.5.7 in OnePlus 7 pro?

  1. oneplusurya
    Gingerbread Jun 8, 2019

    oneplusurya , Jun 8, 2019 :
    I have flashed hydrogen os on my oneplus 7 Pro. Someone please guide me how to to downgrade to oxygen os 9.5.7!
     

    #1
  2. Coastie
    Honeycomb Jun 8, 2019


    #2
  3. oneplusurya
    Gingerbread Jun 9, 2019


    #3
  4. McChilam
    Cupcake Jun 11, 2019

    McChilam , Jun 11, 2019 :
    I am having the same problem.
    Current: Hydrogen OS 9.5.3.GM21
    Target:OnePlus7Pro 9.5.7.GM21AA

    Error:selected install package is too old
     

    #4
  5. F_Asma_Sultana_Vsws
    Cupcake Sep 11, 2019


    #5
    L1568569819596 likes this.