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    Bootloop Google Pixel 3a

    Scheduled Pinned Locked Moved Solved Google Pixel 3a/3a XL
    7 Posts 3 Posters 1.9k Views 1 Watching
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      • druk13D Offline
        druk13
        last edited by

        Hi everybody,

        i've downloaded sargo-pq3b.190801.002-factory-56817dc2.zip and installed Android 9 (Handy was an Android 12) with the following commands:

        fastboot flash bootloader bootloader-sargo-b4s4-0.1-5653622.img
        fastboot reboot-bootloader
        fastboot flash radio radio-sargo-g670-00011-190411-b-5457439.img
        fastboot reboot-bootloader
        fastboot update image-sargo-pq3b.190801.002.zip

        After that, I was in a bootloop with the following message:
        Product revision: sargo MP1.0(ROW)
        Bootloader version: b4s4-0.1-5653622
        Baseband version: g670-00011-190411-B-5457439
        Serial Number: xxxxxxxxxx
        Secure boot: PRODUCTION
        NOS production: yes
        DRAM: 4GB Micron LPDDR4X
        eMMC: 64GB Micron
        Device state: unlocked
        Enter reason: error boot prepare

        I've no idea to solve this problem. Has anybody a hint for me?

        Thanks 🙂

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

          Looks like the downgrade has borked through fastboot. I would try the downgrade through the Chrome web browser and use the Android tool. You may need a windows machine.

          Another method is to install TWRP and side load the ROM through ADB.

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

          druk13D 1 Reply Last reply Reply Quote 0
          • LakotaubpL Offline
            Lakotaubp @druk13
            last edited by

            @druk13 I used a windows machine and android tool as @MrT10001 mentioned and all went well.

            1 Reply Last reply Reply Quote 0
            • druk13D Offline
              druk13 @MrT10001
              last edited by

              @mrt10001
              Tank's MrT10001, but my Pixel 3a was not recognized by Google Chrome.

              I've no clue if it was a good idea, but I've downloaded the ubports installer. My phone was recognized as Sargo but the installer told me, that the device can not be installed. After selecting manualy 'Google Pixel 3a/3a XL', Ubuntu Touch installed fine and now I have a working Pixel 3a.

              Hurray, now I can put my Sony Xperia X in the drawer und a new aera with new hardware can begin.

              MrT10001M 1 Reply Last reply Reply Quote 0
              • MrT10001M Offline
                MrT10001 @druk13
                last edited by

                @druk13 Good stuff. Chrome may not have recognized the device due to old ADB or Fastboot drivers.

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

                druk13D 1 Reply Last reply Reply Quote 0
                • druk13D Offline
                  druk13 @MrT10001
                  last edited by

                  @mrt10001
                  Thanks for the hint with the driver version.

                  Btw, how can I mark my question as solved, because under 'Topic Tools' there is no 'Mark as solved' menu point?

                  MrT10001M 1 Reply Last reply Reply Quote 0
                  • MrT10001M Offline
                    MrT10001 @druk13
                    last edited by

                    @druk13 https://forums.ubports.com/topic/6311/how-to-ask-a-question-and-then-mark-it-as-solved

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

                    1 Reply Last reply Reply Quote 0
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