# Flashing Ubuntu Touch MEGATHREAD **URL:** \ **Category:** Ubuntu Touch\ **Created:** [January 6, 2026, 6:45pm UTC](https://community.braxtech.net/t/flashing-ubuntu-touch-megathread/3677 "2026-01-06T18:45:03Z")\ **Posts on this page:** 1\ **Showing post:** 3
**Author:** ![J.D.Laub](https://community.braxtech.net/letter_avatar_proxy/v4/letter/j/ac8455/32.png) [@J.D.Laub](https://community.braxtech.net/u/J.D.Laub)\ **Post date:** [January 2, 2026, 7:28am UTC](https://community.braxtech.net/t/flashing-ubuntu-touch-megathread/3677/3 "2026-01-02T07:28:51Z")
It was an ordeal, but I got it running by mostly following the instructions. ![ubuntu_touch_on_brax3](https://community.braxtech.net/uploads/default/original/2X/9/9c83be3199a6cce02d5caa2df20a8307e6cdbd78.jpeg) In case anyone else wants to try, here are my notes. - The 3 big steps I needed were - 1. unlock the bootloader - see [How to Unlock the Bootloader of Your Brax Device](https://community.braxtech.net/t/how-to-unlock-the-bootloader-of-your-brax3/45) - 1. install lunaros - see [LunarOS MEGATHREAD](https://community.braxtech.net/t/welcome-to-lunaros/2363) - 1. install ubuntu touch - see [Releases - Open Source Community Guide](https://opensource.braxtech.net/devices/privacy/BraX3/Supported%20OS/ubuntu-touch/3.releases/) - Instead of downloading the android platform tools, I used the android-tools nix package at [NixOS Search](https://search.nixos.org/packages?channel=25.11&show=android-tools) - For installing lunaros, I would’ve preferred to use fastboot instead of spflash, but the fastboot instructions say to use flash.sh. That’s no longer in the platform-tools software, and I couldn’t find it elsewhere with a cursory search. (@plamen , the instructions need updating.) - On that same page, there’s a pointer to the windoze version of spflash, but the pointer to the linux version seems garbled (cut/paste error - @plamen , please correct ). I found it at [SP Flash Tool v6.2228 for Linux - MediaTek Flash Tool](https://spflashtools.com/linux/sp-flash-tool-v6-2228-for-linux#download) Some specifics: - note the 2 IMEI values under settings | about | imei , and the serial# under settings | about | model - unlock the bootloader. I had to run “sudo fastboot” instead of “fastboot” - mkdir ~/Downloads/lunaros - downloaded into that dir all 8 lunaros 6.0.0 files - cd ~/Downloads/lunaros - md5sum -c flash.zip.md5 && md5sum -c otapackage.zip.md5 - unzip flash.zip && unzip otapackage.zip - I needed “`xhost si:localuser:root`” for spflash to run - I needed to use " `sudo sh SPFlashToolV6.sh` " for the spflash command; that sudo is why I needed the xhost command above - Because my laptop’s sole USB-C port was occupied, I initially plugged the phone into the laptop via a USB-A port. Big mistake: it took about an hour to crawl along & eventually pulled a " `data_mux receive timeout or canceled` " error. Things worked MUCH better on the next attempt using the USB-C port. - I did not forget to revoke the xhost priv with “`xhost -si:localuser:root`” - The ubuntu touch install was far easier than that of lunaros, but as with unlocking the bootloader, I had to use sudo with the fastboot commands. It was such a pleasure to be back on the OS most comfortable to me. Kudos to all who have worked on it. Unfortunately - as you tell by the lack of a mobile connection indicator in the screenshot - it’s not connecting to my mobile phone carrier. On my ancient nexus4, under settings there’s a “Mobile” icon in the Network section, but it’s not present on my brax3. I could live without a camera - the camera & barcode scanner apps die after a few seconds - but I can’t live without telephony & SMS from a phone not connected to wifi. Those are my bare needs from a communication device. Because of that , I’ll probably switch back to iodeos until I can secure a 2nd brax3 for testing (with my backup SIM). However, I’ll leave things be for a couple days; if anyone wants me to check something - or if anyone has ideas on getting the mobile connection running - post here. --- _[View the full topic](https://community.braxtech.net/t/flashing-ubuntu-touch-megathread/3677)._