[ROM][I9100][UNOFFICIAL][8.1.0] LineageOS 15.1 [WIP][BETA]

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rINanDO

Senior Member
Dec 17, 2009
701
4,750
Code: 
/*
** Your warranty is now void.
**
** We are not responsible for bricked devices, dead SD cards,
** thermonuclear war, or you getting fired because the alarm app failed. Please
** do some research if you have any concerns about features included in this ROM
** before flashing it! YOU are choosing to make these modifications, and if
** you point the finger at us for messing up your device, we will laugh at you.
**
**/

Hi all,

This is a WIP Oreo build for the Galaxy S2 (i9100). Almost everything is working :)
I'm currently using TWRP 3.0.2 on my dev-phone to install the ROM. Other versions of TWRP I haven't tried. I had a hard time to identify the stability issues and issues with RIL because of lack of debug info. Thanks to @ChronoMonochrome for giving key information to troubleshoot these issues! The stability issues are fixed by several workarounds. (Java NullPointerExceptions are causing native crashes even when they are within try-catch block).

Known issues:
  • Offline charger not working! Don't drain your phone.
  • Battery drain, but device do deep sleep
  • Video recording and playback (partially) not working
  • No HW video en-/decoding
  • YouTube just stops after about 10 minutes (no forced closed)
  • No recent apps behind home button Longpress left touch button.
  • Can't install su-addon of LineageOS
    SuperSU is working but after dirty flash new build causes bootloops
    LOS SU is included in these builds.
  • Lineage PowerHAL needs HIDL implementation for powersaving support
  • No V-Sync
  • Distortion when making screenshot and rotation animation
  • Camera rotation not working (Accelerometer issues)
    It sometimes works after standby/wakeup sequence within 5 seconds with camera app still active.
  • Still batterydrain (Kernel?/wakelock?/GAPPS?)
    Battery drain is caused by GAPPS. Installing it and registering an account eats 10% per hour. ROM is deep sleeping fine.
    Battery drain is caused by Wifi-scanning. After installing GAPPS the Wifi scanning (and Bluetooth) options are enabled by default. Because of this Wifi is ALWAYS active nevertheless the global Wifi-settings! This behavior doesn't exist in LOS-14.1 (Wifi always active with Wifi scanning enabled)
  • After a day, some apps are crashing. (Like Cool Tool, WebView (standard browser))
    This has something to do with ART. Please correct my findings. I don't know how ART works exactly.
    When the app gets optimized by dex2oat and ART is executing it not using JIT, the app crashes when an Null pointer dereference occur.
    This occurs after 4 -6 hours when the device is idle on the charger. This even occurs when the java-code is catching the exception.
    I guess I miss some kernel commits but I don't know where to look... Help! :(
    Temporary workaround is clearing Dalvik-cache via recovery.
    For WebView related crashes, you can install Chrome and use this as your WebView-implementation under Developer Options.

    We limit ART's compile filter to 'quicken'. ' speed' and 'speed-profile' doesn't work properly on our device.

Enable GO (Low RAM) configuration
I created separate builds for GO until I found out there is a generic solution for this.
You can easily switch between editions by flashing the zip via recovery. Just ignore the TWRP-error.
I didn't investigate its cause but it works. Credits goes to @AdrianDC for this MOD.
https://xdaforums.com/android/software-hacking/mod-low-ram-property-patcher-android-t3737373


Source code:
https://www.github.com/lineageos
https://www.github.com/rinando


Build #17 2018-10-10
Overall state: Stable-ish
Android build: 8.1.0-r47

Changes:
- Updated Lineage-sources
- Enabled Wifi PowerSaveMode. No WiFi drain anymore!

Download here: lineage-15.1-20181010-UNOFFICIAL-i9100_SU_MicroG.zip

Build #16 2018-10-4
Overall state: Stable-ish
Android build: 8.1.0-r46
I marked the previous build as stable since I was using it for months as daily drive with no issues except the Wifi battery drain when Wi-Fi scanning is active. In this build the kernel has been updated with AutoSleep-feature so I expect a change in battery usage. (Wakelock Detector now reports our wakelocks.) I just finished porting the feature and updating all drivers so I can't tell we actually have improvements. Please test and report.

Changes:
- Updated Lineage-sources
- Deprecated early suspend. We have autosleep in our kernel!

Known issues & workaround:
- Battery drain caused by Wifi scanning which keeps Wifi always active.
Turn Wi-Fi Scanning off here: Settings -> Security & Privacy -> Location -> Scanning ->Wi-Fi scanning

Download here for full Build: lineage-15.1-20181003-UNOFFICIAL-i9100_SU_MicroG.zip


Build #15 2018-8-1
Overall state: Stable
Android build: 8.1.0-r36

Changes:
- Updated Lineage-sources
- Fixed accelerometer. Camera rotation is working!

Known issues & workaround:
- Battery drain caused by Wifi scanning which keeps Wifi always active.
Turn Wi-Fi Scanning off here: Settings -> Security & Privacy -> Location -> Scanning ->Wi-Fi scanning

Download here for full Build: lineage-15.1-20180731-UNOFFICIAL-i9100_SU_MicroG.zip

Build #14 2018-7-2
Overall state: Stable-ish
Android build: 8.1.0-r30
DON'T INSTALL THIS ROM ON YOUR DAILY DRIVE PHONE.
Changes:
- Updated Lineage-sources
- Fixed ART native crash issue!
- Applied GO optimization (except for the low_ram-flag)

Download here for full Build: lineage-15.1-20180702-UNOFFICIAL-i9100_SU_MicroG.zip


Build #13 2018-6-17
Overall state: Stable-ish
Android build: 8.1.0-r30
DON'T INSTALL THIS ROM ON YOUR DAILY DRIVE PHONE.
Changes:
- Updated Lineage-sources
- Update ART compile filters. Should fix app crash the next day
- Fixed screenshot/rotation UI distortion
- Decreased ZRAM to 50MB for better performance
- Back to 512mb dalvik profile
- Default camera-app pinned in memory

Download here for full Build: lineage-15.1-20180616-UNOFFICIAL-i9100_SU_MicroG.zip


Build #12 2018-5-27
Overall state: Stable-ish
Android build: 8.1.0-r26
DON'T INSTALL THIS ROM ON YOUR DAILY DRIVE PHONE.
Changes:
- Updated Lineage-sources
- Fixed AGPS and RIL's CellLocation
- Fixed IMEI and IMEISV
- Fixed a bug in PowerHal. Interaction CPU Boost didn't work properly.

Download here for full Build: lineage-15.1-20180527-UNOFFICIAL-i9100_SU_MicroG.zip

Build #11 2018-5-5
Overall state: Stable-ish
Android build: 8.1.0-r20
DON'T INSTALL THIS ROM ON YOUR DAILY DRIVE PHONE.
Changes:
- Same as Build #10 except:
- Updated Lineage-sources
- Added the MicroG-patch for Signature Spoofing

Download here for full Build: lineage-15.1-20180505-UNOFFICIAL-i9100_SU_MicroG.zip

Build #10 2018-5-1
Overall state: Stable-ish
Android build: 8.1.0-r20
DON'T INSTALL THIS ROM ON YOUR DAILY DRIVE PHONE.
Changes:
* Significant Motion sensor added (Experimental for Doze)
* Enabled ZRAM again - I didn't noticed performance improvement over time.
And I noticed out of memory issues, hangs and softboots.
* Implemented Lineage PowerHAL HIDL implementation for powersaving support.
* Enabled touchbutton brightness-control.

Still working on:
* Accelerometer/rotation issues
* IMEI - IMEI RIL-requests are depricated. I'm trying to shim this.
* Graphical glitches - Probably because of issues with backing store not supported in libMali.so.
* Shimming exynos4 specific things.
* Still in doubt if GPS fix is actually improved....

Download here for full Build: lineage-15.1-20180501-UNOFFICIAL-i9100_SU.zip

Build #9 2018-4-3
Overall state: Carefully stable
Android build: 8.1.0-r15
DON'T INSTALL THIS ROM ON YOUR DAILY DRIVE PHONE.
Changes:
* Fixed hw encoding/decoding (partially via libstagefright_shim. Still need patch in frameworks_av.)
* Camera recording fixed
* GPS fix improvement
* Latest lineage-sources
* Moved most exynos4 specific changes to our shims or own HIDL implementation
* Disabled ZRAM - Hopefully we have better performance after a few days of use
* Using 1GB memory profile instead of 512MB - Maybe this help memory usage more efficient
* RIL - Moved some code to our shims

Still working on:
* IMEI - IMEI RIL-requests are depricated. I'm trying to shim this.
* Graphical glitches - Probably because of issues with backing store not supported in libMali.so.
* Shimming exynos4 specific things.
* Rotation sometimes not working properly.
* Still in doubt if GPS fix is actually improved....

Download here for full Build: lineage-15.1-20180403-UNOFFICIAL-i9100_SU.zip
Download here for GO Build: lineage-15.1-20180402-UNOFFICIAL-i9100_GO_SU.zip

Build #8 2018-2-18
Overall state: Carefully stable
Android build: 8.1.0-r11
DON'T INSTALL THIS ROM ON YOUR DAILY DRIVE PHONE.
Changes:
- Updated LOS sources
- Fixed offline charging
- Added SU
- Updated GPS-Shim (Now shimming i9100 specific structs)
Download here for full Build: lineage-15.1-20180217-UNOFFICIAL-i9100_SU.zip
Download here for GO Build: lineage-15.1-20180217-UNOFFICIAL-i9100_GO_SU.zip

Build #7 2018-1-29
Overall state: Carefully stable, lets test!
Android build: 8.1.0-r4 (GO)
DON'T INSTALL THIS ROM ON YOUR DAILY DRIVE PHONE.
Changes:
- Updated LOS sources
- Advanced Display is back
- Live Display is back
- Fixed SamsungPowerHAL.
Battery drain should be fixed.
- Fixed crash when alarm goes off in clock-app
(and possibly other crashes)

Download here for full Build: lineage-15.1-20180129-UNOFFICIAL-i9100.zip
Download here for GO Build: lineage-15.1-20180129-UNOFFICIAL-i9100_GO.zip

Build #6 2018-1-23
DON'T INSTALL THIS ROM ON YOUR DAILY DRIVE PHONE.
Overall state: Carefully stable, lets test!
Android build: 8.1.0-r4 (GO)
Changes:
* Fixed random softboots by workarounds, uptime so far 20 hours.
* Fixed installing large apps via GAPPS (Waze, Antutu 3D benchmark, etc)
* Fixed bluetooth crash/restart when turned off
Download here: lineage-15.1-20180123-UNOFFICIAL-i9100.zip

Build #5 2018-1-13
DON'T INSTALL THIS ROM ON YOUR DAILY DRIVE PHONE.
Overall state: More stable
Android build: 8.1.0-r4
Changes:
* RIL works!
* Disabeled HW Codecs.
* GAPPS 8.1 is working!
* Random softboots when WIFI is enabled (as far as I know)
* Workarounds implemented for stability (Still investigating main cause)
Download here: lineage-15.1-20180113-UNOFFICIAL-i9100.zip


Build #4 2017-12-10
DON'T INSTALL THIS ROM ON YOUR DAILY DRIVE PHONE.
Overall state: UNSTABLE
Android build: 8.1.0-r1
Changes:
* Same things works/not works as Build #3
* Using GO-configuration
* Most apps won't start or crashes randomly.
* Don't install GAPPS.

Download here: lineage-15.1-20171210_204047-UNOFFICIAL-i9100.zip


Build #3 2017-12-04
DON'T INSTALL THIS ROM ON YOUR DAILY DRIVE PHONE.
Overall state: UNSTABLE
Android build: 8.0.0-r30

What works?
* Display color Fix (BOARD_EGL_WORKAROUND_BUG_10194508)
* Bluetooth
* Wifi
* Audio
* Camera (Take picture only)
* Vibrator
* GPS
* Sensors (all but accelerometer)

What doesn't work?
* Charger
* Camera (Video recording)
* Display graphics issues (distortion + hw acceleration)
* HW Video playback
* RIL (null pointer reference on setRadioState in libsec-ril.so)
* Accelerometer
* Stability issues (Time to time null pointer reference in /data/dalvik-cache/arm/system@framework@services.jar@classes.dex (offset 0x500000))

Download here: Lineage-15.0-20171203_214230-UNOFFICIAL-i9100.zip

Build #2 2017-11-13
DON'T INSTALL THIS ROM ON YOUR DAILY DRIVE PHONE.
Overall state: UNSTABLE
Android build: 8.0.0-r30

What works?
* Display color Fix (BOARD_EGL_WORKAROUND_BUG_10194508)
* Bluetooth
* Wifi

What doesn't work?
* Audio
* Display graphics issues (distortion)
* Video playback
* Camera
* Vibrator
* RIL
* And still many more....
Download here: lineage-15.0-20171113-UNOFFICIAL-i9100.zip


Build #1 2017-09-17
DON'T INSTALL THIS ROM ON YOUR DAILY DRIVE PHONE.
Overall state: UNSTABLE

What works? Nothing, not really tested because it just booted
What doesn't work? Everything, not really tested
Download here: lineage-15.0-20170917-UNOFFICIAL-i9100.zip
 
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toy_story

toy_story

Senior Member
Feb 5, 2017
355
573
41
Tambov
Official Open GApps 8.1
Download Open GApps recommended by the Lineage OS team
Installation in TWRP-3.1.0-0 was successful.
Upd.
My first time too was not loaded.
I did all the Wipe and uploaded in 5 minutes.
The screenshots are done, but the screenshot's image is very bad, like on the old TV, where the channel constantly gets off and does not see anything, so @rINanDO posted such an image, not a screenshot.
Yes, almost nothing works, but the phone works quickly, without a cellular connection, you can check and solve the problems, but my s2 is the main phone.
 

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linusdan

linusdan

Senior Member
Mar 18, 2017
453
1,084
Salvador, BA
artededan.com
i9100
Blood pressure dropped a bit when I saw 'Android O' even in alpha phase!
I'll try right now!

---------- Post added at 02:08 AM ---------- Previous post was at 01:52 AM ----------

How can I help besides reporting the bugs?

EDIT: I tried to install the trial version of Oreo lineage with TWRP versions 3.02-1 and 3.1.0. Unsuccessfully. It is only in part 'Patching system image unconditionally'. 10 minutes later it stays the same and the CPU of the cell phone goes to 67 degrees. Exit the screen only if you remove the battery.
I also tried the recent kernel dorimanx and nothing happened.
I'll wait for the next test build =)
 
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M

matterrorist

Member
Sep 4, 2016
23
1
On my device It boot's up, but the colors are inverted in some way, the blue on the logo is a green, the entire system get's green for some reason
 
Oxydeme

Oxydeme

Senior Member
Feb 4, 2013
171
68
i9100
Redmi Note 10S
Hi @rINanDO
I tested your 'very very WIP' ROM, and I can say that as others it booted successfully, 2hours after I flashed it. Sadly I got enough memory but your provided Gapps couldn't install cause there was a sudden memory leak,nevermind, as others, the colors are inverted, but, for a WIP ROM, It was good to see it booted on my i9100, what was the new thing on the main screen, is it a kind of app drawer?
Anyway thanks for all the hard work your puting in this project, I've been trying your unofficial Lineage ROM since the very first one and am still impressed, an Oreo build for i9100, and you are always on the go, thanks for that, be sure that I'll check your thread as soon as possible, I sendyou all the possible luck I could.
Cheers!

Edit: tested over Isorec TWRP 3.1.0.0 as it is the one I installed previously on my i9100, good night :)
 
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A

Alienfly

Member
Oct 17, 2015
23
5
Hi to everyone,
I installed this wip rom from twrp 3.0.2.1 without gapps and the boot is OK but the problem is that the wifi does not work and there is no configured baseband of it being a bit closed ... Also there are random restarts and when it happens it stays in bootloop .. . To start it then a factory reset is needed. I then tried loading gapps pico 170902...boot is ok but at startup there are continuous stop processes and everything turns instabile and unusable.
I'm looking forward to release and thank you for keeping S2 alive!!!
Regards.

Sent from my GT-I9505 using XDA-Developers Legacy app
 
ChronoMonochrome

ChronoMonochrome

Senior Member
Jan 29, 2014
2,276
4,927
Stavropol
To fix the display colors inverted, you need to apply patch . You might also want to bring a legacy audiopolicy back: https://github.com/UltimateROM/android_frameworks_av/commits/cm-15.0 .
In my case audio is working now on Galaxy Ace 2.
Btw, any ideas on how to bring up RIL to work? I've started to work on frameworks/opt/telephony, but I've a kind a feeling I'm working not in a right direction as I can't seem to find a similar works for this repository. Just wondering how some devices' RIL works without using a custom RIL class.
 
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    R
    rINanDO
    Code: 
    /*
** Your warranty is now void.
**
** We are not responsible for bricked devices, dead SD cards,
** thermonuclear war, or you getting fired because the alarm app failed. Please
** do some research if you have any concerns about features included in this ROM
** before flashing it! YOU are choosing to make these modifications, and if
** you point the finger at us for messing up your device, we will laugh at you.
**
**/

    Hi all,

    This is a WIP Oreo build for the Galaxy S2 (i9100). Almost everything is working :)
    I'm currently using TWRP 3.0.2 on my dev-phone to install the ROM. Other versions of TWRP I haven't tried. I had a hard time to identify the stability issues and issues with RIL because of lack of debug info. Thanks to @ChronoMonochrome for giving key information to troubleshoot these issues! The stability issues are fixed by several workarounds. (Java NullPointerExceptions are causing native crashes even when they are within try-catch block).

    Known issues:
    • Offline charger not working! Don't drain your phone.
    • Battery drain, but device do deep sleep
    • Video recording and playback (partially) not working
    • No HW video en-/decoding
    • YouTube just stops after about 10 minutes (no forced closed)
    • No recent apps behind home button Longpress left touch button.
    • Can't install su-addon of LineageOS
      SuperSU is working but after dirty flash new build causes bootloops
      LOS SU is included in these builds.
    • Lineage PowerHAL needs HIDL implementation for powersaving support
    • No V-Sync
    • Distortion when making screenshot and rotation animation
    • Camera rotation not working (Accelerometer issues)
      It sometimes works after standby/wakeup sequence within 5 seconds with camera app still active.
    • Still batterydrain (Kernel?/wakelock?/GAPPS?)
      Battery drain is caused by GAPPS. Installing it and registering an account eats 10% per hour. ROM is deep sleeping fine.
      Battery drain is caused by Wifi-scanning. After installing GAPPS the Wifi scanning (and Bluetooth) options are enabled by default. Because of this Wifi is ALWAYS active nevertheless the global Wifi-settings! This behavior doesn't exist in LOS-14.1 (Wifi always active with Wifi scanning enabled)
    • After a day, some apps are crashing. (Like Cool Tool, WebView (standard browser))
      This has something to do with ART. Please correct my findings. I don't know how ART works exactly.
      When the app gets optimized by dex2oat and ART is executing it not using JIT, the app crashes when an Null pointer dereference occur.
      This occurs after 4 -6 hours when the device is idle on the charger. This even occurs when the java-code is catching the exception.
      I guess I miss some kernel commits but I don't know where to look... Help! :(
      Temporary workaround is clearing Dalvik-cache via recovery.
      For WebView related crashes, you can install Chrome and use this as your WebView-implementation under Developer Options.

      We limit ART's compile filter to 'quicken'. ' speed' and 'speed-profile' doesn't work properly on our device.

    Enable GO (Low RAM) configuration
    I created separate builds for GO until I found out there is a generic solution for this.
    You can easily switch between editions by flashing the zip via recovery. Just ignore the TWRP-error.
    I didn't investigate its cause but it works. Credits goes to @AdrianDC for this MOD.
    https://xdaforums.com/android/software-hacking/mod-low-ram-property-patcher-android-t3737373


    Source code:
    https://www.github.com/lineageos
    https://www.github.com/rinando


    Build #17 2018-10-10
    Overall state: Stable-ish
    Android build: 8.1.0-r47

    Changes:
    - Updated Lineage-sources
    - Enabled Wifi PowerSaveMode. No WiFi drain anymore!

    Download here: lineage-15.1-20181010-UNOFFICIAL-i9100_SU_MicroG.zip

    Build #16 2018-10-4
    Overall state: Stable-ish
    Android build: 8.1.0-r46
    I marked the previous build as stable since I was using it for months as daily drive with no issues except the Wifi battery drain when Wi-Fi scanning is active. In this build the kernel has been updated with AutoSleep-feature so I expect a change in battery usage. (Wakelock Detector now reports our wakelocks.) I just finished porting the feature and updating all drivers so I can't tell we actually have improvements. Please test and report.

    Changes:
    - Updated Lineage-sources
    - Deprecated early suspend. We have autosleep in our kernel!

    Known issues & workaround:
    - Battery drain caused by Wifi scanning which keeps Wifi always active.
    Turn Wi-Fi Scanning off here: Settings -> Security & Privacy -> Location -> Scanning ->Wi-Fi scanning

    Download here for full Build: lineage-15.1-20181003-UNOFFICIAL-i9100_SU_MicroG.zip


    Build #15 2018-8-1
    Overall state: Stable
    Android build: 8.1.0-r36

    Changes:
    - Updated Lineage-sources
    - Fixed accelerometer. Camera rotation is working!

    Known issues & workaround:
    - Battery drain caused by Wifi scanning which keeps Wifi always active.
    Turn Wi-Fi Scanning off here: Settings -> Security & Privacy -> Location -> Scanning ->Wi-Fi scanning

    Download here for full Build: lineage-15.1-20180731-UNOFFICIAL-i9100_SU_MicroG.zip

    Build #14 2018-7-2
    Overall state: Stable-ish
    Android build: 8.1.0-r30
    DON'T INSTALL THIS ROM ON YOUR DAILY DRIVE PHONE.
    Changes:
    - Updated Lineage-sources
    - Fixed ART native crash issue!
    - Applied GO optimization (except for the low_ram-flag)

    Download here for full Build: lineage-15.1-20180702-UNOFFICIAL-i9100_SU_MicroG.zip


    Build #13 2018-6-17
    Overall state: Stable-ish
    Android build: 8.1.0-r30
    DON'T INSTALL THIS ROM ON YOUR DAILY DRIVE PHONE.
    Changes:
    - Updated Lineage-sources
    - Update ART compile filters. Should fix app crash the next day
    - Fixed screenshot/rotation UI distortion
    - Decreased ZRAM to 50MB for better performance
    - Back to 512mb dalvik profile
    - Default camera-app pinned in memory

    Download here for full Build: lineage-15.1-20180616-UNOFFICIAL-i9100_SU_MicroG.zip


    Build #12 2018-5-27
    Overall state: Stable-ish
    Android build: 8.1.0-r26
    DON'T INSTALL THIS ROM ON YOUR DAILY DRIVE PHONE.
    Changes:
    - Updated Lineage-sources
    - Fixed AGPS and RIL's CellLocation
    - Fixed IMEI and IMEISV
    - Fixed a bug in PowerHal. Interaction CPU Boost didn't work properly.

    Download here for full Build: lineage-15.1-20180527-UNOFFICIAL-i9100_SU_MicroG.zip

    Build #11 2018-5-5
    Overall state: Stable-ish
    Android build: 8.1.0-r20
    DON'T INSTALL THIS ROM ON YOUR DAILY DRIVE PHONE.
    Changes:
    - Same as Build #10 except:
    - Updated Lineage-sources
    - Added the MicroG-patch for Signature Spoofing

    Download here for full Build: lineage-15.1-20180505-UNOFFICIAL-i9100_SU_MicroG.zip

    Build #10 2018-5-1
    Overall state: Stable-ish
    Android build: 8.1.0-r20
    DON'T INSTALL THIS ROM ON YOUR DAILY DRIVE PHONE.
    Changes:
    * Significant Motion sensor added (Experimental for Doze)
    * Enabled ZRAM again - I didn't noticed performance improvement over time.
    And I noticed out of memory issues, hangs and softboots.
    * Implemented Lineage PowerHAL HIDL implementation for powersaving support.
    * Enabled touchbutton brightness-control.

    Still working on:
    * Accelerometer/rotation issues
    * IMEI - IMEI RIL-requests are depricated. I'm trying to shim this.
    * Graphical glitches - Probably because of issues with backing store not supported in libMali.so.
    * Shimming exynos4 specific things.
    * Still in doubt if GPS fix is actually improved....

    Download here for full Build: lineage-15.1-20180501-UNOFFICIAL-i9100_SU.zip

    Build #9 2018-4-3
    Overall state: Carefully stable
    Android build: 8.1.0-r15
    DON'T INSTALL THIS ROM ON YOUR DAILY DRIVE PHONE.
    Changes:
    * Fixed hw encoding/decoding (partially via libstagefright_shim. Still need patch in frameworks_av.)
    * Camera recording fixed
    * GPS fix improvement
    * Latest lineage-sources
    * Moved most exynos4 specific changes to our shims or own HIDL implementation
    * Disabled ZRAM - Hopefully we have better performance after a few days of use
    * Using 1GB memory profile instead of 512MB - Maybe this help memory usage more efficient
    * RIL - Moved some code to our shims

    Still working on:
    * IMEI - IMEI RIL-requests are depricated. I'm trying to shim this.
    * Graphical glitches - Probably because of issues with backing store not supported in libMali.so.
    * Shimming exynos4 specific things.
    * Rotation sometimes not working properly.
    * Still in doubt if GPS fix is actually improved....

    Download here for full Build: lineage-15.1-20180403-UNOFFICIAL-i9100_SU.zip
    Download here for GO Build: lineage-15.1-20180402-UNOFFICIAL-i9100_GO_SU.zip

    Build #8 2018-2-18
    Overall state: Carefully stable
    Android build: 8.1.0-r11
    DON'T INSTALL THIS ROM ON YOUR DAILY DRIVE PHONE.
    Changes:
    - Updated LOS sources
    - Fixed offline charging
    - Added SU
    - Updated GPS-Shim (Now shimming i9100 specific structs)
    Download here for full Build: lineage-15.1-20180217-UNOFFICIAL-i9100_SU.zip
    Download here for GO Build: lineage-15.1-20180217-UNOFFICIAL-i9100_GO_SU.zip

    Build #7 2018-1-29
    Overall state: Carefully stable, lets test!
    Android build: 8.1.0-r4 (GO)
    DON'T INSTALL THIS ROM ON YOUR DAILY DRIVE PHONE.
    Changes:
    - Updated LOS sources
    - Advanced Display is back
    - Live Display is back
    - Fixed SamsungPowerHAL.
    Battery drain should be fixed.
    - Fixed crash when alarm goes off in clock-app
    (and possibly other crashes)

    Download here for full Build: lineage-15.1-20180129-UNOFFICIAL-i9100.zip
    Download here for GO Build: lineage-15.1-20180129-UNOFFICIAL-i9100_GO.zip

    Build #6 2018-1-23
    DON'T INSTALL THIS ROM ON YOUR DAILY DRIVE PHONE.
    Overall state: Carefully stable, lets test!
    Android build: 8.1.0-r4 (GO)
    Changes:
    * Fixed random softboots by workarounds, uptime so far 20 hours.
    * Fixed installing large apps via GAPPS (Waze, Antutu 3D benchmark, etc)
    * Fixed bluetooth crash/restart when turned off
    Download here: lineage-15.1-20180123-UNOFFICIAL-i9100.zip

    Build #5 2018-1-13
    DON'T INSTALL THIS ROM ON YOUR DAILY DRIVE PHONE.
    Overall state: More stable
    Android build: 8.1.0-r4
    Changes:
    * RIL works!
    * Disabeled HW Codecs.
    * GAPPS 8.1 is working!
    * Random softboots when WIFI is enabled (as far as I know)
    * Workarounds implemented for stability (Still investigating main cause)
    Download here: lineage-15.1-20180113-UNOFFICIAL-i9100.zip


    Build #4 2017-12-10
    DON'T INSTALL THIS ROM ON YOUR DAILY DRIVE PHONE.
    Overall state: UNSTABLE
    Android build: 8.1.0-r1
    Changes:
    * Same things works/not works as Build #3
    * Using GO-configuration
    * Most apps won't start or crashes randomly.
    * Don't install GAPPS.

    Download here: lineage-15.1-20171210_204047-UNOFFICIAL-i9100.zip


    Build #3 2017-12-04
    DON'T INSTALL THIS ROM ON YOUR DAILY DRIVE PHONE.
    Overall state: UNSTABLE
    Android build: 8.0.0-r30

    What works?
    * Display color Fix (BOARD_EGL_WORKAROUND_BUG_10194508)
    * Bluetooth
    * Wifi
    * Audio
    * Camera (Take picture only)
    * Vibrator
    * GPS
    * Sensors (all but accelerometer)

    What doesn't work?
    * Charger
    * Camera (Video recording)
    * Display graphics issues (distortion + hw acceleration)
    * HW Video playback
    * RIL (null pointer reference on setRadioState in libsec-ril.so)
    * Accelerometer
    * Stability issues (Time to time null pointer reference in /data/dalvik-cache/arm/system@framework@services.jar@classes.dex (offset 0x500000))

    Download here: Lineage-15.0-20171203_214230-UNOFFICIAL-i9100.zip

    Build #2 2017-11-13
    DON'T INSTALL THIS ROM ON YOUR DAILY DRIVE PHONE.
    Overall state: UNSTABLE
    Android build: 8.0.0-r30

    What works?
    * Display color Fix (BOARD_EGL_WORKAROUND_BUG_10194508)
    * Bluetooth
    * Wifi

    What doesn't work?
    * Audio
    * Display graphics issues (distortion)
    * Video playback
    * Camera
    * Vibrator
    * RIL
    * And still many more....
    Download here: lineage-15.0-20171113-UNOFFICIAL-i9100.zip


    Build #1 2017-09-17
    DON'T INSTALL THIS ROM ON YOUR DAILY DRIVE PHONE.
    Overall state: UNSTABLE

    What works? Nothing, not really tested because it just booted
    What doesn't work? Everything, not really tested
    Download here: lineage-15.0-20170917-UNOFFICIAL-i9100.zip
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    36
    R
    rINanDO
    New build is up!
    Thanks to @ChronoMonochrome for providing key information to resolve and create some workarounds for our stability issues!

    Build #5 2018-1-13
    DON'T INSTALL THIS ROM ON YOUR DAILY DRIVE PHONE.
    Overall state: More stable
    Android build: 8.1.0-r4
    Changes:
    * RIL works!
    * Disabeled HW Codecs.
    * GAPPS 8.1 is working!
    * Random softboots when WIFI is enabled (as far as I know)
    * Workarounds implemented for stability (Still investigating main cause)
    Download here: lineage-15.1-20180113-UNOFFICIAL-i9100.zip
    View
    33
    R
    rINanDO
    toy_story said:
    Hello everyone, the esteemed @rINanDO, has a new build for testing!
    Happy testing!:
    - lineage-15.1-20180217-UNOFFICIAL-i9100_GO_SU.zip
    Click to expand...
    Click to collapse

    And I updated the OP :)

    Build #8 2018-2-18
    Overall state: Carefully stable
    Android build: 8.1.0-r11
    DON'T INSTALL THIS ROM ON YOUR DAILY DRIVE PHONE.
    Changes:
    - Updated LOS sources
    - Fixed offline charging
    - Added SU
    - Updated GPS-Shim (Now shimming i9100 specific structs)
    Download here for full Build: lineage-15.1-20180217-UNOFFICIAL-i9100_SU.zip
    Download here for GO Build: lineage-15.1-20180217-UNOFFICIAL-i9100_GO_SU.zip
    View
    33
    R
    rINanDO
    It has been a while but I got some news. I managed to get Bluetooth working. WiFi is starting but not connecting or discovering anything. The colours are fixed, but I was using a hack to get the old gralloc1on0adapter working so we have a bootable ROM. But we must use hidl to be inline with oreo. So I'm still working to get the display working the right way and hope it will resolve some stability issues. Its quite tough to under stand new concepts without knowledge how this were in N and its history. Stay tuned!
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    R
    rINanDO
    New build is up! (Android 8.0.0-r30 - 5 nov 2017 security patches)

    See OP for details. I had a hard time to fix wifi. The main problem was some kernel faulty merges but that is fixed now. Hopefully the next build won't take that long.
    It is still not a stable ROM with many broken features. Only install it for testing purposes.

    Happy testing!
    View

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