[ROM] [S9/S9+] ArrowOS 12.1 | OFFICIAL [Android 12.1] [OTA] [OSS]

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headzy

Senior Member
Dec 9, 2009
94
54
Everything seems to work okay so far on this rom, I came from Alexander's dev build haven't noticed no issues or bugs.

So thank you dev.

One issue tho, not exactly a issue but how to I disable the on screen screen saver clock when I don't use my device? I don't want to see the clock when my device isn't being used.
Turn off Always on Display.
 
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corsario28

Member
Mar 9, 2015
5
0
Anyone knows how to unlock the bootloader on a Samsung S9 ?
There is no OEM unlock in dev options, neither the date tricks work.
If I run adb reboot bootloader it goes to download mode and fastboot devices doesnt recognize any device
 

RalloTubbs

New member
Jan 24, 2022
3
0
Anyone knows how to unlock the bootloader on a Samsung S9 ?
There is no OEM unlock in dev options, neither the date tricks work.
If I run adb reboot bootloader it goes to download mode and fastboot devices doesnt recognize any device

That is RMM Lock. I believe you need to go on stock and connect it for the internet and wait for the lock to be removed (AFAIK 5 days)
 

jurkoman

Senior Member
Oct 24, 2015
61
11
Hi, i have found an issue.
USB Tethering (i think after latest update 26-01) seems to be buggy.
Its working rarely (sometimes not working) and several times after switch, my S9 gives black screen and reboot.
Someone has this bug also?
And i have one suggestion for lil bit more customisable lock screen clock, because is very big for me :D or how i can set it ?
 

Reag

Member
Mar 7, 2014
27
9
Hi, i have found an issue.
USB Tethering (i think after latest update 26-01) seems to be buggy.
Its working rarely (sometimes not working) and several times after switch, my S9 gives black screen and reboot.
Someone has this bug also?
And i have one suggestion for lil bit more customisable lock screen clock, because is very big for me :D or how i can set it ?
If your phone reboots while switching USB modes, try disabling USB debugging in the dev settings.

The lock screen design is the same on all AOSP/Pixel based ROMs. ArrowOS is pretty much clean AOSP, so for customizations, you'll have to wait for a different ROM to come out.
 

jurkoman

Senior Member
Oct 24, 2015
61
11
If your phone reboots while switching USB modes, try disabling USB debugging in the dev settings.

The lock screen design is the same on all AOSP/Pixel based ROMs. ArrowOS is pretty much clean AOSP, so for customizations, you'll have to wait for a different ROM to come out.
Even if i have Debugging disabled it reboots almost every time and its doing only when i enable USB Hotspot (tethering).
 

king1990

Senior Member
Oct 13, 2012
506
873
Try this , go to developer options , default usb mode > file transfer then try again.
I can't reproduce thus on my device so is still crashing try taking logs logcat/lastkmsg
 

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  • 3
    Pre-release builds



    Thank you everyone for your patience, you will enjoy this release with many bug fixes and better overall experience:

    Changelog :

    • Arrow 12.1 based on Android 12.1.
    • Fully rebased on latest Joisp(los19.1) trees.
    • Updated Mali blobs and many other from N770F.
    • Fixed USB Audio.
    • Fixed WPA2-EAP connection.
    • Dolby profile works similar to stock oneui.
    • Fixed Spen cursor and landscape mode.
    • Kernel upstreamed from 4.9.291 to 4.9.312 thanks to
    • Increase the thickness of Status bar to fit privacy indicators pills. Thanks to Dylan for convincing me lol.
    • Support for N variant.
    • Switch to aidl vibration hal , better effect and be customized from the accessibility menu.
    • Fixed Ok google
    • Better overall performance and battery life,
    • F2FS support for both data and cache
    • And many more small changes here and there.
    Download:


    Note:
    Clean flash is mandatory.
    These builds WONT force encrypt your device, will be informed soon if the official build will force encrypt

    Known bugs:
    5Ghz hotspot.
    Encryption.

    Happy flashing
    2
    Pre-release builds FIXUP:

    These builds properly fix the bt call issue that some users reported , big thanks for all tester .

    Changelog:
    *May Patch
    *Bt call fixed
    *Audio hal updated to V7
    *Using stock oneui APN config file for better carrier support.

    Download link
    https://drive.google.com/drive/u/0/folders/1To0buppHLbPcKfMFNfPxOC7licDvSAM-

    Instructions
    Dirty flash over previous release. Clean flash otherwise.

    Enjoy.
    2
    Encryption is debatable as for it to work I need to force encrypt at first boot which mean no TWRP support. I still did not decide which way to go but I will soon
    Please, please, please, don't force encrypt 🙏
    1
    Android 11 QPR3 or higher supports the cached apps freezer,But it seems that it supported by Linux kernel.How I can get this feature on my arrow 12 samsung s9?
    Should i flash a newer kernel?
    Need at least 4.14 kernel, we have 4.9.
    Did it simply dared times, dirty to flash the pre-release version 12.1 on my existing 12.0.
    Was lazy to flash everything clean.
    This has so far also works.
    All apps have been adopted and work.
    Security update 4/2022.
    Only Magisk was broken and I had to flash new.
    As far as once happy.
    And I am convinced that Arrow will get better with time.
    Thanks to the developers for the effort and time.
    You are welcome
    Great 12.1 pre-release build.
    Looking forward encryption and if possible liveDisplay (on latest 12.1 build, screen colors are very staturated).
    Thanks for all the work to the developers, you rock guys.
    Livedisplay wont happen anytime soon. Encryption is debatable as for it to work I need to force encrypt at first boot which mean no TWRP support. I still did not decide which way to go but I will soon
    Is it correct that face unlock not working in 12.1?
    I have looking everywhere but I can't find information about it.
    Arrow does not support this
    1
    Official arrow-12.1 are ready and available to download from arrowos website
    Check 1st and 2nd post for more details.
    Happy Flashing
  • 12
    logo.png

    ArrowOS

    ABOUT
    ArrowOS
    is an AOSP/CAF based project started with the aim of keeping things simple, clean and neat.

    Website: https://arrowos.net
    Telegram: Channel | TG Portal/Links
    Github: https://github.com/ArrowOS
    Code Review: review.arrowos.net
    E-mail: arrowos.contact
    PayPal: Donate to us
    Blog: blog.arrowos.net

    Checkout more documentation at (maintainership/contributing): Check this out

    WHAT WORKS?
    • Almost everything

    WHAT DOESN'T WORK?
    • Volte, Wifi Calling and other samsung proprietary apps
    Be sure to include a log : check how to

    DOWNLOADS

    SUPPORT GROUP
    Telegram

    Read our blog article/post about:
    * HOW-TO report a bug
    * GAPPS and VANILLA variants
    * Checking build integrity

    ROM Source: https://github.com/ArrowOS
    Kernel Source: https://github.com/ArrowOS-Devices/android_kernel_samsung_exynos9810

    CREDITS
    ArrowOS Team for the rom sources
    All the tester and developers in Exynos9810 TG group
    4
    Regarding updates I think many notice that OTA was stopped and the download links showing as discontinued. That because android 12.0 support has been ended in favor of 12.1 which will be available soon.
    The problem with 12.1 is google released a broken sources AGAIN and the current state of 12.1 is not good for public release. I would estimate another month for a stable release.
    3
    Pre-release builds



    Thank you everyone for your patience, you will enjoy this release with many bug fixes and better overall experience:

    Changelog :

    • Arrow 12.1 based on Android 12.1.
    • Fully rebased on latest Joisp(los19.1) trees.
    • Updated Mali blobs and many other from N770F.
    • Fixed USB Audio.
    • Fixed WPA2-EAP connection.
    • Dolby profile works similar to stock oneui.
    • Fixed Spen cursor and landscape mode.
    • Kernel upstreamed from 4.9.291 to 4.9.312 thanks to
    • Increase the thickness of Status bar to fit privacy indicators pills. Thanks to Dylan for convincing me lol.
    • Support for N variant.
    • Switch to aidl vibration hal , better effect and be customized from the accessibility menu.
    • Fixed Ok google
    • Better overall performance and battery life,
    • F2FS support for both data and cache
    • And many more small changes here and there.
    Download:


    Note:
    Clean flash is mandatory.
    These builds WONT force encrypt your device, will be informed soon if the official build will force encrypt

    Known bugs:
    5Ghz hotspot.
    Encryption.

    Happy flashing
    2
    Turn off Always on Display.
    Thank you it worked.
    2
    OTA is available for all.

    Happy flashing