UBports Robot Logo UBports Forum
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Groups
    • Search
    • Register
    • Login

    UBports flashing failed half-way

    Scheduled Pinned Locked Moved Solved Google Pixel 3a/3a XL
    8 Posts 4 Posters 352 Views 2 Watching
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
      Reply
      • Reply as topic
      Log in to reply
      This topic has been deleted. Only users with topic management privileges can see it.
      • 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) initially with 2 SIMs
        Daily driver: Google Pixel 3a (20.04 OTA-8/stable) [was: Nokia N900 (Maemo) from 2009].

        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...

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

            @MrT10001 Thanks -- I'll try that.

            Xiaomi Mi A2 (16.04 OTA-25/stable) initially with 2 SIMs
            Daily driver: Google Pixel 3a (20.04 OTA-8/stable) [was: Nokia N900 (Maemo) from 2009].

            P 1 Reply Last reply Reply Quote 0
            • 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) initially with 2 SIMs
              Daily driver: Google Pixel 3a (20.04 OTA-8/stable) [was: Nokia N900 (Maemo) from 2009].

              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

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

                  @stanwood Thanks a lot for the advice.

                  Xiaomi Mi A2 (16.04 OTA-25/stable) initially with 2 SIMs
                  Daily driver: Google Pixel 3a (20.04 OTA-8/stable) [was: Nokia N900 (Maemo) from 2009].

                  P 1 Reply Last reply Reply Quote 1
                  • P Offline
                    PhAndersson @PhAndersson
                    last edited by

                    I just installed the phone with UBP-installer v0.10.0 -- everything went like a charm this time round.

                    Many thanks to both of you for your support.

                    Xiaomi Mi A2 (16.04 OTA-25/stable) initially with 2 SIMs
                    Daily driver: Google Pixel 3a (20.04 OTA-8/stable) [was: Nokia N900 (Maemo) from 2009].

                    Vlad NirkyV 1 Reply Last reply Reply Quote 1
                    • P PhAndersson marked this topic as a question on
                    • P PhAndersson has marked this topic as solved on
                    • Vlad NirkyV Offline
                      Vlad Nirky @PhAndersson
                      last edited by

                      @PhAndersson
                      Congrats and welcome!

                      1 Reply Last reply Reply Quote 0
                      • First post
                        Last post