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    VoLTE Implementation For Google Pixel 3a/3a XL

    Scheduled Pinned Locked Moved Google Pixel 3a/3a XL
    volte
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      • A Offline
        atarilinux @mr_growl
        last edited by

        @mr_growl

        Sounds like a good idea! Keep us posted how the build goes and if you need anything! I did find this online during my research. Would this help?

        https://github.com/propgsp/Android-Tools

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        • J Offline
          JayH @mr_growl
          last edited by

          @mr_growl I would think since the vendor blobs are device specific that they wouldn't change from OS-to-OS ??

          M 1 Reply Last reply Reply Quote 0
          • M Offline
            mr_growl @JayH
            last edited by

            @JayH I was presuming they'd be specific to the kernel they were built for. But I'm new to that πŸ™‚

            @atarilinux Thanks for the link. I'll give those a try next time I'm working at it (been too busy lately)

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            • A Offline
              atarilinux @mr_growl
              last edited by

              @mr_growl

              I completely understand. It has been hectic this way too. I hope I can get some more time to look at this soon! I hope what I sent can be of some use.

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              • A Offline
                atarilinux
                last edited by

                @JayH @mr_growl

                I also found this UBPorts video from 6 years ago. It shows how to build a port. Some things probably have changed a bit since then, but it should assist in providing a visual for the Porting Documentation.

                https://m.youtube.com/watch?v=nShXVDXM50A

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                • M Offline
                  mr_growl
                  last edited by mr_growl

                  I had a go with doing a build this weekend and it seems to have built something (I have a boot.img, rootfs.img and system.img).

                  So now trying to sort out the phone to get it ready to try flashing. I checked my /data partition and it is mounted from dm-4 and is not ext4 (instructions say /data should not be encrypted and should be ext4). So just trying to sort that out. Any advice on setting up the partitions in preparation to flash would be appreciated πŸ™‚

                  arubislanderA 1 Reply Last reply Reply Quote 0
                  • arubislanderA Online
                    arubislander @mr_growl
                    last edited by

                    @mr_growl As I understand it, just that /data should be ext4. There is no need for repartitioning if the correct stock ROM was installed beforehand.

                    πŸ‡¦πŸ‡Ό πŸ‡³πŸ‡± πŸ‡ΊπŸ‡Έ πŸ‡ͺπŸ‡Έ
                    Happily running Ubuntu Touch
                    JingPad (24.04-1.x daily)
                    OnePlus Nord N10 5G (24.04-2.x daily)
                    PinePhone OG (20.04)
                    Meizu Pro 5 (16.04 DEV)
                    Google Pixel 3a

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                    • M Offline
                      mr_growl @arubislander
                      last edited by

                      @arubislander Thanks! I flashed android 12.1 to it, so I'll just try reformatting that partition as ext4.

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                      • A Offline
                        atarilinux
                        last edited by

                        @mr_growl

                        That's great news! Keep us posted how everything goes! Fingers crossed everything works correctly!

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                        • M Offline
                          mr_growl
                          last edited by

                          Did first attempt at flashing. This is on pixel 3a XL:

                          1. flash last stock firmware (android 12.1)
                          2. install twrp
                          3. boot into twrp and open terminal
                          4. umount /dev/block/dm-4 (which was mounted to /data and /sdcard)
                          5. mke2fs -t ext4 /dev/block/dm-4
                          6. mount /dev/block/dm-4 /data
                          7. mount /dev/block/dm-4/sdcard
                          8. boot into bootloader
                          9. flasboot flash boot boot.img
                          10. attempt to reboot into recovery

                          At this point the device wouldn't boot into recovery. So I'm flashing twrp back on to it.

                          Any thoughts?

                          Here's the repo I'm using: https://gitlab.com/mr-growl/ubports-ubuntu-touch-google-bonito-volte
                          I'm building in a ubuntu server 20.04 vm. I modified the deviceinfo from atarilinux's version slightly which got it building properly for me.

                          ikozI 1 Reply Last reply Reply Quote 0
                          • M Offline
                            mr_growl
                            last edited by

                            While I was re-flashing twrp a thought occurred. With TWRP on the pixel 3a (compared to the nexus 5 and 4 which I used to use) I have to boot it using "fastboot boot twrp.img" and then use the "flash current twrp" option (taken from the lineage install instructions)... on the older phones it was "fastboot flash recovery twrp.img". Which makes me think this twrp might be writing to the same place as boot.img when I do the "fastboot flash boot boot.img". Any thoughts on that?

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                            • ikozI Offline
                              ikoz @mr_growl
                              last edited by ikoz

                              @mr_growl Why don't you formtat through the built it in option in TWRP or even better via fastboot: fastboot format:ext4 userdata? (the partition name may differ)

                              Also, when the block device shows up as dm-something it is encrypted.

                              May the source be with you

                              M 1 Reply Last reply Reply Quote 0
                              • M Offline
                                mr_growl @ikoz
                                last edited by

                                @ikoz Thanks! I'll give that a go (I'm still new to a lot of this).

                                I was thinking it was encrypted. Seems to me that encryption is on by default in android 12 / lineage 19.1 and there isn't an option to disable it in the interface. Not sure what to do from this point.

                                ikozI 1 Reply Last reply Reply Quote 0
                                • ikozI Offline
                                  ikoz @mr_growl
                                  last edited by

                                  @mr_growl If you disable requiring password to login (just swipe to unlock), it will also disable encryption.

                                  But just running the fastboot command will work (if it throws any error, it likely means your fastboot build is broken and you'll have to use the official one from Google).

                                  May the source be with you

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                                  • A Offline
                                    atarilinux
                                    last edited by

                                    @mr_growl

                                    I might be off here, but did you use fastbootd? The Google Pixel 3a has retrofitted dynamic partitons in Android 12.1.

                                    https://source.android.com/docs/core/architecture/bootloader/fastbootd

                                    Info on Retrofitted Dynamic Partitions:
                                    https://lucaweiss.eu/post/2023-03-30-retrofit-dynamic-partition/

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