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    UBports flashing failed half-way

    Scheduled Pinned Locked Moved Google Pixel 3a/3a XL
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    • P Offline
      PhAndersson
      last edited by

      Hello,
      I got a refurbished Pixel 3a delivered with Android 12 and was able to unlock its bootloader and downgrade it to Android 9 (PQ3B.190801.002) using the web-based Android Flash Tool.
      I then attempted the UT installation using 'ubports-installer' version 0.9.7-beta (upon startup, it suggested that "snap refresh --stable", but snap told me that no update was available).
      I selected channel "20.04/arm64/android9plus/stable" and the UT installation process started (it said "flashing firmware"), then asked me to reboot the phone in recovery, which I tried to do -- the phone seemed stuck on the white "Google" splash screen. 'ubports-installer' was never able to re-establish the communication with the device.
      I tried power-cycling the phone, booting it to bootloader and switching to recovery mode again, but this no longer works -- it returns by itself to the bootloader with a message at the bottom saying "failed to boot boot.img" (or some such).
      Any idea as to how I should proceed? (try to re-flash Android 9? retry immediately with UBP-installer?)
      Also, is version 0.9.7-beta of UBP-installer the recommended one?
      TIA
      Ph. A.

      Xiaomi Mi A2 (16.04 OTA-25/stable) with 2 SIMs

      MrT10001M 1 Reply Last reply Reply Quote 0
      • MrT10001M Offline
        MrT10001 @PhAndersson
        last edited by

        @PhAndersson Flash back to Android 9 and make sure your phone works. Then use the latest version on the installer (0.10.0) which will be on edge to install UT.

        Xiaomi Redmi Note 7.... And more...
        I have too many devices...

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        • P Offline
          PhAndersson @MrT10001
          last edited by

          @MrT10001 Thanks -- I'll try that.

          Xiaomi Mi A2 (16.04 OTA-25/stable) with 2 SIMs

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          • P Offline
            PhAndersson @PhAndersson
            last edited by

            For the benefit of the community: due to my failed flashing attempt, the phone was left in a state where only the bootloader could be reached. It displayed a message saying: "no valid slot to boot".

            As suggested by @MrT10001, I was able to get it back to a functioning state by re-flashing it with Android 9 (PQ3B.190801.002) using the 'flash-all.sh' script.

            I'll try again the UT installation using the UBP-installer v0.10.0 this time and report back on the outcome.

            Xiaomi Mi A2 (16.04 OTA-25/stable) with 2 SIMs

            stanwoodS 1 Reply Last reply Reply Quote 0
            • stanwoodS Offline
              stanwood @PhAndersson
              last edited by

              @PhAndersson If the Snap package doesn't work well, you can get the latest UBports Installer AppImage version here: https://devices.ubuntu-touch.io/installer/ which works like a charm on my Xubuntu laptop.

              If the device fails to reboot in recovery mode, you may try to force the behavior using: (in the terminal)

              adb reboot recovery

              Also, ensure you have ticked all the boxes "Wipe data" + "Bootstrap partition", etc...

              Redmi Note 9S Stable
              If God has a computer, it must be a GNU/Linux

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