FP4 + Ubuntu Touch

Its possible

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The more you know… I don’t see the point though, but whatever floats people’s boats.

Please read above and other Topics

Fairphone 4 is one of the promoted devices of Ubuntu Touch so it should not be difficult to install it:
Download the UBports installer and follow the instructions :slight_smile:

Yes it’s always possible to go back to Android OS.

Just a side note: Ubuntu Touch doesn’t support relocking bootloader, so it has to be kept unlocked.

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i have unlocked bootloader but the ADB command not working:

If this doesn’t work, try ./fastboot flashing unlock and press the Enter :leftwards_arrow_with_hook: key.

  • Follow the instructions on the Fairphone screen. This command will wipe all the personal data on your phone.
  • After the phone reboots, boot into the fastboot mode once again (step 3).
  • In a Command Promp or a terminal, type fastboot flashing unlock_critical and press the Enter :leftwards_arrow_with_hook: key.

If this doesn’t work, try ./fastboot flashing unlock_critical and press the Enter :leftwards_arrow_with_hook: key.

  • Follow the instructions on the Fairphone screen. This command will wipe all the personal data on your phone.

What is not working? Please paste the error message if you have one…

Is your phone in fastboot mode before doing those commands? A quick way to check is to type adb devices and fastboot devices to see if your computer see your FP4 :slight_smile:

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And just to sort out: you cant use adb when in fastboot and you tried fastboot commands and not adb commands…

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i have thys problem: i have unlocked OEM but when i restart the fastboot mode this message appear: DEVICE STATE: LOCKED

With enabling OEM unlock, you dont unlock the bootloader you just give the option do it, with fastboot

how unlock device state?

See part 2 of https://support.fairphone.com/hc/en-us/articles/10492476238865-Manage-the-Bootloader

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Or follow the instructions you posted above, assuming those come from Ubuntu

Big performance improvement for FP4 on Ubuntu Touch Focal :smiley:

FOCAL development
Focal on UT has been out for some months now. There have been two releases so far. With OTA3 imminent. With OTA3, if your device supports the Focal build, you will find a direct option to switch in settings. Everything had to be reworked to use SystemD instead of UpStart, so the amount of work involved was huge. There is a new Network Manager, a new build of Ofono and much more.

Halium QG has been brewing for about a year and it now brings immense performance improvements. Qt provides basic functionality to put things on the screen. Controls, buttons, text. Since Halium QG works as a Qt plugin, there is nothing that developers have to do because their apps already sit on top of Qt.

Porters do need to enable it, if it would assist their build. There will be some documentation on how to do that soon. The Fairphone 4 and Pixel 3a already have it enabled. It is built for multicore use. With all the tweaks in place, the performance benchmark for UT on the FP4 has increased 10x! A video was shown which showcases the impressive results but note that the video was made before binary blobs and all the tweaks were in place. Performance is now even better.

Part of the changes to Halium made by Alfred harness the power of the Android binary blobs. Morph browser shows those changes strongly. For porters the top priority should always be stability and they should work on that first but if they have done that, there are performance tweaks like this they could work on too.

The benchmark rating on the FP4 is very stable at 200 milliseconds. If there are limiting factors they are somewhere else. The particular approach used features built into Android phones so they are not applicable to Mainline but there may be other approaches that Mainline developers could take.

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Some news about FP4 in the last UBports Q&A :slight_smile:

Fairphone

Fairose asked about the current state of FP4 with pre-installed UT. Is there an expected date for sales to start? Actually we may skip a model and go for launch with FP5. One of the things we are particularly keen on is to have 5G support. Marius has got that working in beta. It should be in Devel by the time of the next Q&A.

In the EU we can get by without VoLTE but in many countries it is essential and we would want FP5 to have that at launch.

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Focal 20.04 OTA-3 Available Now

Today we are very pleased to announce the release of Ubuntu Touch OTA-3 Focal. The third stable release based on Ubuntu 20.04 brings many improvements and changes. All the details can be found in the OTA-3 blog.

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Focal 20.04 OTA-4 Available Now

Today we are very pleased to announce the release of Ubuntu Touch OTA-4 Focal. The forth stable release based on Ubuntu 20.04 brings many improvements and changes. All the details can be found in the OTA-4 blog.

ubuntu

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LOL! Just bricked my fairphone 4 after locking the bootloader with Ubuntu Touch installed.
Anyone know if it’s okay to ‘lock_critical’ or should I just leave everything completely unlocked when I finally get my device back?

Is it possible to lock the boot loader without bricking the device?
Ran lock_critical and lock via fastboot and I’m probably going to have to send it into a repair center now. :laughing:

Too bad, seemed like a good experience for the 30 minutes or so I got to mess around with it.

I merged your comments and moved it here

And I assume thats still true

Hi!
Indeed Ubuntu Touch doesn’t support locked bootloader, so it will not boot.
In theory you just need to unlock it again, if you’re lucky get_unlock_ability is = 1. :crossed_fingers:

The problem (as reported in several other topics) comes when you lock it while get_unlock_ability=0
This is a general bug of FP4 (not Ubuntu Touch specific) and unfortunately there is no other option than send it back… :slightly_frowning_face:

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