Porting LineageOS to FP2

Tags: #<Tag:0x00007fefc145a6b0>


great, you are welcome.

One more suggestion. Is possible to set up a separated but close thread or a news/rss feed to be automatically updated when a new modem firmware is available?


So, I’ve made the LOS project on Taiga public. Let’s see if we can more easily manage the bugs in this issue tracker:
https://bugtracker.fairphone.com/project/fairphone-lineageos-on-fairphone/issues (you’ll need a account to post)

I will move the bugs described at the startpost in Taiga (and link to Taiga in the startpost).


Can you give me access to the project too (at least so I can write comments)? Username is @z3ntu in the bugtracker


same here, I would like to add my bug(s) as well


Wouldn’t creating an account via “Sign Up” at the top right of the bugtracker page let you do that?


Try again guys. We’ve changed a permission



I am using lineage now for more than two weeks and its working pretty well.

Exception: sometimes mobile internet is sometimes not working. I don’t really get when this occurs or what’s the reason… But from time to time the small mobile network symbol next to the time shows no connection to internet (LTE etc…). When I try to use the internet its not working. However when I open the menu above the symbol shows a connection.
The only a bit annoying solution that I found till now is to restart. Anyone has the same problem??

I gonna take screenshots the next time it occurs!


@LeonL, it might be related to this bug: https://bugtracker.fairphone.com/project/fairphone-lineageos-on-fairphone/issue/11


Yeah seems to be that! Gonna try the airplane workaround next time.


Can add your results as comment to the bug report


You can turn any forum topic into a RSS feed by adding “.rss” to the URL. For example:



Finally got a meaningful almost not corrupted last_kmsg after a random reboot.
Guess what? It’s the modem driver purposefully panicking the kernel to reboot the SoC after a modem failure.

SMSM: Modem SMSM state changed to SMSM_RESET.
Fatal error on the modem.
modem subsystem failure reason: lte_ml1_sm_conn_meas_vmc.c:3285:Assert IS_BIT_SET(meas_cfg_req->meas_obj_valid.
subsys-restart: subsystem_restart_dev(): Restart sequence requested for modem, restart_level = SYSTEM.
Kernel panic - not syncing: subsys-restart: Resetting the SoC - modem crashed.
[<c010ee28>] (unwind_backtrace+0x0/0x138) from [<c0bd54b8>] (panic+0xb0/0x23c)
[<c0bd54b8>] (panic+0xb0/0x23c) from [<c017ce90>] (subsystem_restart_dev+0x1b0/0x1fc)
[<c017ce90>] (subsystem_restart_dev+0x1b0/0x1fc) from [<c0bd5184>] (restart_modem+0xa8/0xd4)
[<c0bd5184>] (restart_modem+0xa8/0xd4) from [<c01438c4>] (modem_err_fatal_intr_handler+0x34/0x48)
[<c01438c4>] (modem_err_fatal_intr_handler+0x34/0x48) from [<c021ae98>] (handle_irq_event_percpu+0x94/0x2b8)
[<c021ae98>] (handle_irq_event_percpu+0x94/0x2b8) from [<c021b0f8>] (handle_irq_event+0x3c/0x5c)
[<c021b0f8>] (handle_irq_event+0x3c/0x5c) from [<c021dd48>] (handle_level_irq+0xf4/0x130)
[<c021dd48>] (handle_level_irq+0xf4/0x130) from [<c021a4ac>] (generic_handle_irq+0x20/0x30)
[<c021a4ac>] (generic_handle_irq+0x20/0x30) from [<c0138b4c>] (smp2p_gpio_in_notify+0x254/0x2dc)
[<c0138b4c>] (smp2p_gpio_in_notify+0x254/0x2dc) from [<c0be8000>] (notifier_call_chain+0x40/0x68)
[<c0be8000>] (notifier_call_chain+0x40/0x68) from [<c01d8cc4>] (raw_notifier_call_chain+0x14/0x1c)
[<c01d8cc4>] (raw_notifier_call_chain+0x14/0x1c) from [<c0137c2c>] (smp2p_interrupt_handler+0x330/0x47c)
[<c0137c2c>] (smp2p_interrupt_handler+0x330/0x47c) from [<c021ae98>] (handle_irq_event_percpu+0x94/0x2b8)
[<c021ae98>] (handle_irq_event_percpu+0x94/0x2b8) from [<c021b0f8>] (handle_irq_event+0x3c/0x5c)
[<c021b0f8>] (handle_irq_event+0x3c/0x5c) from [<c021de64>] (handle_fasteoi_irq+0xe0/0x14c)
[<c021de64>] (handle_fasteoi_irq+0xe0/0x14c) from [<c021a4ac>] (generic_handle_irq+0x20/0x30)
[<c021a4ac>] (generic_handle_irq+0x20/0x30) from [<c0108eb8>] (handle_IRQ+0xa4/0xe4)
[<c0108eb8>] (handle_IRQ+0xa4/0xe4) from [<c01028c0>] (gic_handle_irq+0x98/0x124)
unwind: Unknown symbol address c01028c0
unwind: Index not found c01028c0
wcnss crash shutdown 0
Rebooting in 5 seconds..
Going down for restart now
Calling SCM to disable SPMI PMIC arbiter

1896 Corrected bytes, 11 unrecoverable blocks


Can you open a bug here:


Here: https://bugtracker.fairphone.com/project/fairphone-lineageos-on-fairphone/issue/13


I have updated the modem.zip file to the latest modem firmware of Fairphone OS 17.09.3. This zip file also includes the official Fairphone splash image. In case you have installed a custom splash image, you might want to reflash it.

I wanted to add some verification code to the updater-script, but it doesn’t run yet. I’ll try to fix it until the next release.

:file_folder: Download: modem-17.09.3.zip
:bookmark_tabs: SHA256: 14a27ed94dc450ed1fe0e9cd2543f4b350dec096f97369a33c5e2c3693dd45bd

After you have flashed the zip file, you should see the version 4437.1-FP2-0-07 under Settings -> About Phone -> Baseband Version. It was 4436.1-FP2-0-05 in the previous version.

Since those are binary blobs, I have no idea what has changed since the previous release. But comparing the image files, I can see that the following files were changed:


The following files were not changed since previous release:


Alternatively, you can flash the latest modem firmware using fastboot. You can get the firmware images from the official Fairphone OS downloads page (scroll down to binary images). Don’t flash system.img, boot.img and recovery.img obviously.

LineageOS 14.1 with OTA updates for FP2
:gb: :de: Random reboots with (official) Lineage OS?

Regarding the SIM2 SMS bug which was closed in the bugtracker

I know that this bug is fixed in LineageOS BUT as stated in differend post in the Lineage OTA thread

and also in the bugreport from @freibadschwimmer

this bug still persist in our Lineage ROM till now.

After some peeking around in logfiles and with regards to the different SIM bugs in the bugtracker and here at the forum, it looks like that we have a problem with the communication between
OS <-> RIL <-> MODEM
As RIL and MODEM are binary objects from Fraiphone/HW Vendors and also used in the FPOS/FPOOS builds without the problems we have in Lineage, perhaps there is some ill communication between OS <-> RIL.


What build (=build date) and what modem are you running?


Can you fill in the modem and your findings in issue 14? I’ve re-opened issue 6.

Thanks for your tests and your work!


Build-Date = Mon Sep 11 07:54:22 UTC 2017
Baseband = 4437.1-FP2-0-07


I have downgraded to my (self-built from source on the given dates, with only a slight modification to frameworks/base to add a signature-spoofing permission, required for proper operation of microG) 20170918 build from my 20170930 one because it was unusable: some processes would randomly fail to start, and this would only get worse with the uptime. I’m afraid I don’t have much debug info on this, but I suspect this is because of the recent kernel changes.