94 lines
3.8 KiB
Markdown
94 lines
3.8 KiB
Markdown
# fp6-img
|
|
|
|
Flashable [postmarketOS](https://postmarketos.org/) images for the
|
|
**Fairphone 6**, built nightly from the
|
|
[Catcrafts milos-linux](https://forgejo.catcrafts.net/Catcrafts/milos-linux)
|
|
`combined-stable` kernel branch, with
|
|
[imsd](https://forgejo.catcrafts.net/Catcrafts/imsd) (userspace VoLTE)
|
|
preinstalled.
|
|
|
|
Maintained by [Jorijn van der Graaf](https://catcrafts.net/about)
|
|
(TheMightyCat) at [Catcrafts](https://catcrafts.net/).
|
|
|
|
> [!CAUTION]
|
|
> **Emergency calling is unverified.** Calls (including 112/911) go through
|
|
> imsd, whose emergency path is spec-shaped but has never been verified
|
|
> against a live network.
|
|
|
|
## What works
|
|
|
|
Everything on the `combined-stable` branch: display, touch, wifi, cellular
|
|
data, NFC (reader), speaker audio, microphone, IMU, magnetometer, barometer,
|
|
ambient light/proximity — plus VoLTE calls (both directions) through imsd.
|
|
|
|
Verified on exactly one device / one carrier (KPN NL). Reports from other
|
|
carriers are very welcome.
|
|
|
|
## Flashing
|
|
|
|
Download `boot.img` and `fairphone-fp6.img` from the latest release, unlock
|
|
the bootloader ([Fairphone's official process](https://support.fairphone.com/hc/en-us/articles/10492476238737)),
|
|
then:
|
|
|
|
```sh
|
|
fastboot flash userdata fairphone-fp6.img
|
|
fastboot flash boot boot.img
|
|
fastboot erase dtbo
|
|
fastboot reboot
|
|
```
|
|
|
|
Default login: `user` / `147147` (same as official postmarketOS images —
|
|
change it). **Never re-lock the bootloader** with a custom image installed.
|
|
|
|
> [!WARNING]
|
|
> **Back up your modem's NV partitions before flashing.** Flash sessions have
|
|
> been observed to zero `modemst1`/`modemst2` on this device, after which the
|
|
> modem reports no IMEI and neither SIM slot answers (`no-atr-received`) —
|
|
> including the eSIM. The profiles themselves are safe in the eUICC, but only
|
|
> a restore of working `modemst` images brings access back; stock Android
|
|
> re-provisions them on boot, postmarketOS cannot. Before your first flash:
|
|
> `dd` both partitions to files from a rooted stock system (or from a running
|
|
> pmOS: `/dev/disk/by-partlabel/modemst1` and `modemst2`) and keep them
|
|
> forever. Restore with `dd` in the other direction, then reboot.
|
|
|
|
## VoLTE configuration
|
|
|
|
imsd is installed but needs your carrier's P-CSCF address:
|
|
|
|
```sh
|
|
# /etc/imsd.env
|
|
PCSCF=<your carrier's P-CSCF IPv6 address>
|
|
```
|
|
|
|
Find it in a stock-firmware capture or your carrier's IMS documentation, then
|
|
`systemctl restart imsd` (the service is enabled at boot and waits for this
|
|
file to exist). See the
|
|
[imsd README](https://forgejo.catcrafts.net/Catcrafts/imsd) for the full
|
|
variable reference and carrier assumptions.
|
|
|
|
## How it builds
|
|
|
|
`build.sh` drives [pmbootstrap](https://gitlab.postmarketos.org/postmarketOS/pmbootstrap)
|
|
with the `aports/` overlay in this repository:
|
|
|
|
- `device/linux-postmarketos-qcom-milos` — the pmaports kernel aport,
|
|
repointed at `combined-stable` (source tarball generated with git-archive;
|
|
the Forgejo instance serves no source archives) with the exact kernel
|
|
config the development FP6 runs.
|
|
- `modem/imsd` — imsd, packaged from source. Its `provides=81voltd` keeps the
|
|
conflicting modem-firmware IMS helper off the image (two IMS stacks cannot
|
|
share one PDN).
|
|
- `main/postmarketos-config-nftables` — adds the `-imsd` subpackage accepting
|
|
imsd's IPsec-protected SIP ports on the IMS PDN (auto-installed alongside
|
|
imsd).
|
|
|
|
## Roadmap
|
|
|
|
- [x] End-to-end pipeline validation (first complete image built 2026-08-08)
|
|
- [x] Speaker-audio userspace files (`soc-fairphone-fp6-audio`: topology,
|
|
amp config, UCM — byte-identical to the tested dev-phone set; blob
|
|
provenance to be settled before this repo goes public)
|
|
- [x] imsd in the image (pinned to the public 0.3.0 commit; the phone's
|
|
working call stack incl. callaudioshim and the modem-daemon autostart
|
|
override ship as packages)
|
|
- [ ] Nightly schedule once the first dispatched run is green
|