1. Flash TWRP
2. Full wipe via TWRP
3. Manually flash Android 7.1.2 via bootloader
4. Boot into & minimally setup Android
5. Enable USB debugging
6. Boot into TWRP (had to reflash via bootloader)
7. Wipe Cache & Data
8. Format Data
9. Flash ubports via installer (new version was available as of Dec 12

After step 9, the phone rebooted into the ubports updater screen. It stuck there for a while. . . so, I left it alone and ran some errands. When I came back. . . boom! While I don't have service on it, I AM posting from my ubports 6p. . .

Would be good to know since when this happened. Basically I think the startup script is too fast, I will add some delay

Mac is unix, so I assume the manual instructions should work, but maybe with some modifications

@kz6fittycent you can always get the latest images from our CI as follows:

• The rootfs is built multiple times by day and can be downloaded here: https://ci.ubports.com/job/xenial-hybris-rootfs-arm64/
• The system image is built daily but it does not change very often, probably you dont need to replace it that much. Download this here: and then extract it from the archive from this location https://ci.ubports.com/job/Device Compatibility Images/job/halium-angler/ , and put it in the very same location in /system/var/lib... or, if you use the halium install only, just put it into /data partition - anyways just overwrite it, dont create an additional one somewhere

E.g.:

Does this answer your question? Not the rootfs is then what you would have in the devel channel. There is no direct download for RC or stable, but we are quite stable also in devel ^^

Thanks! Will I need to wipe before installing these coming from the older files or just flash over them?

• The rootfs is built multiple times by day and can be downloaded here: https://ci.ubports.com/job/xenial-hybris-rootfs-arm64/
• The system image is built daily but it does not change very often, probably you dont need to replace it that much. Download this here: and then extract it from the archive from this location https://ci.ubports.com/job/Device Compatibility Images/job/halium-angler/ , and put it in the very same location in /system/var/lib... or, if you use the halium install only, just put it into /data partition - anyways just overwrite it, dont create an additional one somewhere

E.g.:

Does this answer your question? Not the rootfs is then what you would have in the devel channel. There is no direct download for RC or stable, but we are quite stable also in devel ^^

I think is thread has gone out of control and a lot of us will benefit from a new thread with up to date instructions and links to all files in a single post.

In my case:

• Install 7.1.2
• Install TWRP (either 4 cores or not)
• delete encryption
• run installer
• screen shows installing update
• BLOD
• I understand I'm missing hallium files and roofts (no idea which files)

There are a few links to NextCloud files but unsure which one contains the correct files as none match the content of the post instructions with the files in links (at least as today).

I use ubports on a nexus 4 on the side as well.

You can update to the latest rootfs manually. Also in the collection of links I posted above. Just flash individuallly with fastboot using the commands I provided you in PM (which you posted).

@kz6fittycent Don't remember how old the image is you used. If your build does not have update channels, running the installer will bring you up to date.

That's the same cable I used to flash it manually - good cable - bad installer?

@kz6fittycent Don't remember how old the image is you used. If your build does not have update channels, running the installer will bring you up to date.

Do I need to run through the entire installation process again (via the UBports Installer)? It is still giving me grief when trying to push the new update over - did not tick the bootstrap button.

I was misunderstanding what was being said - this is how I did it:

• Download files needed here
• Flash 7.2.1 (stock ROM from Google)
• Flash 4-core TWRP after flashing stock image
• Boot into android
• Enable USB Debugging in Developer menu < - this wasn't needed because I did the rest via TWRP
• Boot into TWRP
• Wipe dalvik, data, and cache
• Reboot into recovery (TWRP)
• Run manual installation steps:

sudo apt install qemu-utils binfmt-support qemu-user-static e2fsprogs sudo simg2img binutils

cd /path/to/files/

./halium-install-standalone.sh -p ut ubports-touch.rootfs-xenial-armhf.tar.gz system.img

adb reboot bootloader

fastboot flash boot halium-boot-4-cores.img

fastboot reboot

I now have a working installation of UBPorts on my angler

Thanks all!

P.S. I have extra files on my NC server that I needed, including the 4-core.img, the 7.2.1 files from Google, TWRP-4-core and it's associated boot script. - if you need them, I have them. Otherwise, they should all likely be hosted by the team in one spot.

I: Unmounting images
I: Pushing rootfs and android image to /data via ADB
I:    Pushing rootfs to /data via ADB
adb: error: failed to copy '.halium-install-imgs.RNTTa/rootfs.img' to '/data/rootfs.img': remote couldn't create file: Permission denied
.halium-install-imgs.RNTTa/rootfs.img: 0 fil... pushed. 43.1 MB/s (2752512 bytes in 0.061s)
I:    Pushing android image to /data via ADB
adb: error: failed to copy '.halium-install-imgs.RNTTa/system.img' to '/data/system.img': remote couldn't create file: Permission denied
.halium-install-imgs.RNTTa/system.img: 0 fil... pushed. 59.3 MB/s (2621440 bytes in 0.042s)

Followed this set of instructions:

./halium-install-standalone.sh -p ut ubports-touch.rootfs-xenial-armhf.tar.gz system.img
adb reboot bootloader
fastboot flash boot halium-boot-8-cores.img
fastboot reboot

/data, dalvik, and cache were wiped so I don't know what would cause this.

I ran the script with sudo as I was getting permission denied previous to do anything without it. Should I have su'd to root?

All very odd to me.

I think the problem is either the phone or some step that's getting missed or misunderstood on my part.