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OxygenOS Urgent help, my phone won't turn on anymore, only a warning pops up

  1. zcvx
    Donut Sep 28, 2021

    zcvx , Sep 28, 2021 :
    I was playing a game last night, suddenly the screen stuck, then rebooted, just started not long again stuck reboot, then popped up this warning, can enter fastboot, but can not enter the recovery, my phone is not rooted, also did not install magisk, some time ago just upgraded the latest version of O2OS system, currently on this phone, there are a lot of personal important information inside, what should I do?
     

    Attached Files:


    #1
  2. B_Wrath
    Nougat Sep 28, 2021

    B_Wrath , Sep 28, 2021 :
    Press and hold volume up and power button together till you get a vibration feedback. It should restart normally.
     

    #2
    Artemus and Shailender Sharma like this.
  3. Shailender Sharma
    Nougat Sep 28, 2021

    Shailender Sharma , Sep 28, 2021 :
    Try to exit this mode. To do so, press and hold the Power and Volume Up button for around 8-10 seconds.
     

    #3
    Artemus likes this.
  4. zcvx
    Donut Sep 28, 2021

    zcvx , Sep 28, 2021 :
    No use, the error message has changed, but this information is not fixed, several attempts will change back and change back again
     

    Attached Files:


    #4
  5. zcvx
    Donut Sep 28, 2021

    zcvx , Sep 28, 2021 :
    Hello, thank you for the advice, but this method does not work
     

    #5
  6. zcvx
    Donut Sep 28, 2021

    zcvx , Sep 28, 2021 :
    Thank you for the advice, but it does not work
     

    #6
  7. B_Wrath
    Nougat Sep 28, 2021

    B_Wrath , Sep 28, 2021 :
    Does it give any feedback while you try that method? Hold it for approximately 30 seconds.
     

    #7
    Artemus likes this.
  8. zcvx
    Donut Sep 28, 2021

    zcvx , Sep 28, 2021 :
    Yes, my phone vibrates and the boot screen reappears, but after the Android icon disappears the screen goes black and then one of these two error messages pops up
     

    #8
  9. B_Wrath
    Nougat Sep 28, 2021

    B_Wrath , Sep 28, 2021 :
    Try using MSM tool to revive the phone. But you cannot retrieve the data.
     

    #9
    Artemus likes this.
  10. zcvx
    Donut Sep 28, 2021

    zcvx , Sep 28, 2021 :
    Is this the only way to go? I really don't want to lose all my data.
     

    #10
  11. Dresa91
    User of the Year 2016; Most Active User 2020 Sep 28, 2021


    #11
    Artemus likes this.
  12. zcvx
    Donut Sep 28, 2021

  13. Dresa91
    User of the Year 2016; Most Active User 2020 Sep 28, 2021

    Dresa91 , Sep 28, 2021 :
    Right.
     

    #13
  14. zcvx
    Donut Sep 28, 2021

    zcvx , Sep 28, 2021 :
    Which system package should I download, I downloaded 10.3.8, but several attempts can not boot, after the appearance of a plus logo will be a black screen, wait a long time can not enter the system normally upload_2021-9-28_17-52-44.png
     

    #14
  15. Dresa91
    User of the Year 2016; Most Active User 2020 Sep 28, 2021

    Dresa91 , Sep 28, 2021 :
    Then try an older one.
     

    #15
    Praty_28 likes this.
  16. zcvx
    Donut Sep 28, 2021

    zcvx , Sep 28, 2021 :
    Although the black screen, the phone still maintains a certain amount of heat, I think it may be stuck in a certain step of the boot
     

    #16
  17. Dresa91
    User of the Year 2016; Most Active User 2020 Sep 28, 2021

    Dresa91 , Sep 28, 2021 :
    but the msm tool ran successfully?
     

    #17
    Praty_28 likes this.
  18. zcvx
    Donut Sep 28, 2021

    zcvx , Sep 28, 2021 :
    msm shows successful download.But the phone does not seem to automatically reboot, (or maybe I did not see)the phone has been a black screen, can enter fastboot normally, still can not enter the recovery, with the boot as black screen
     

    #18
  19. Dresa91
    User of the Year 2016; Most Active User 2020 Sep 28, 2021

    Dresa91 , Sep 28, 2021 :
    And you did follow the guide - step by step?
     

    #19
    Praty_28 likes this.
  20. Praty_28
    KitKat Sep 28, 2021

    Praty_28 , Sep 28, 2021 :
    There is a slim possibly that your motherboard died somehow, a friend of mine had a similar problem where his phone suddenly got into crashdump and even MSM couldn't fix it. Luckily his device was in warranty so he got the motherboard replaced for free.
     

    #20
    Dresa91 likes this.