[ROM][5.1.1][I9100] CyanogenMod 12.1 [UNOFFICIAL][06/17]

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liamR

Senior Member
Feb 14, 2007
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[SIZE=+1]Unofficial Kernel Builds[/SIZE]​

[size=+1]Gustavo's Kernel:[/size]
You can find all the info about this kernel in this thread: http://forum.xda-developers.com/gal...nel-kernel-aosp-roms-stweaks-synapse-t2222843

[size=+1]Downloads[/size]
CWM 22/06 build: Link
Kernel Source: GitHub

[size=+1]Dorimanx Kernel:[/size]
You can find all the info about this kernel in this thread: http://forum.xda-developers.com/gal...rnel-3-12-rc6-dorimanx-8-43-jb-i9100-t1617219

[size=+1]Downloads[/size]
26/06 build: Link
Kernel Source: GitHub

Hi @Lysergic Acid
Do you have the last Gustavo's Kernel (for 5.1.1 CM12.1) with TWRP instead of CWM?

Thanks :)
 

BenjyTec

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Jun 8, 2015
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M.FANDIES

Member
Dec 8, 2015
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Cairo
stable cm 5.1.1 i9100

i want to know is there is an full stable cm 12.1 for full daily use ?
and if there isnt why did you started working on cm 13
i am sure it will be wonderful to be from the first develobers to release the marshmallow roms but it wont be bad to have a full stable 5.1.1 rom for full daily use for gt i9100
i will be thankful if you have a full stable 5.1.1 for full daily use
and if there is a stable rom for daily use for gt i9100 and you have its link please tell me
and thanks
 
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arnab

Inactive Recognized Developer
Feb 1, 2007
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Nagpur
i want to know is there is an full stable cm 12.1 for full daily use ?
and if there isnt why did you started working on cm 13
i am sure it will be wonderful to be from the first develobers to release the marshmallow roms but it wont be bad to have a full stable 5.1.1 rom for full daily use for gt i9100
i will be thankful if you have a full stable 5.1.1 for full daily use
and if there is a stable rom for daily use for gt i9100 and you have its link please tell me
and thanks

Cm12.1 is stable.

Sent from my MI 3W using XDA Free mobile app
 

daniu

Senior Member
Feb 27, 2009
845
393
i want to know is there is an full stable cm 12.1 for full daily use ?
and if there isnt why did you started working on cm 13
i am sure it will be wonderful to be from the first develobers to release the marshmallow roms but it wont be bad to have a full stable 5.1.1 rom for full daily use for gt i9100
i will be thankful if you have a full stable 5.1.1 for full daily use
and if there is a stable rom for daily use for gt i9100 and you have its link please tell me
and thanks
Hi

I guess you gotta define stable ...
There seem to be quite a lot of people using cm12.1 on the s2 on a daily basis (including me). Of this here is not stable then win xp never was. Not sure if I'd say this one is as stable as win7 because I have hardly seen win7 crash (I did experience lots of bugs in user software though).
Cm12.1 can definitely be used on the s2 without gaining too many grey hair - which is not saying that it is bug free. However it will never be buffered - according to Pareto the effort to gain that would be infinite anyways ...

Regards

Sent from my x-phone using brain 2.0
 

Saber

Inactive Recognized Contributor
Apr 9, 2014
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Xiaomi Poco F3
not all cm 12.1
i tried snapshot versions and unofficial versions and at it ends with me by losing all my data
i need a lollipop rom for playing games like any natural device

Snapshot version is old. It doesn't have freezefix included and doesn't have isorec recovery support. Newest nightly is the build you should use.

For games, turn off zram or keep it to a low setting (you can do this in kernel adiutor in the virtual ram panel, just reduce swappiness or turn off it). This should give you performance overall. Lollipop still suffers from bad ram management :(

gsstudios
 

M.FANDIES

Member
Dec 8, 2015
47
8
Cairo
Snapshot version is old. It doesn't have freezefix included and doesn't have isorec recovery support. Newest nightly is the build you should use.

For games, turn off zram or keep it to a low setting (you can do this in kernel adiutor in the virtual ram panel, just reduce swappiness or turn off it). This should give you performance overall. Lollipop still suffers from bad ram management :(

gsstudios

when i tried to read about nightlies all suffer from it and say it was built by a robot so it have errors but snaposhot made by real person so it is good
and i was using snapshot then i was locking in the settings i think i activated cm recovery i think it made the error
when i power on the phone the the title "samsung galaxy sII GT I9100" appear and then no boot animation appear after a while i connected the phone to the charger i felt the vibration then i tried to open the screen lock it was pattern so i was feeling the dots vibration and i succeed to open it all of this i done while the screen was black after this i could not do any thing
i done a factor reset from this i was disappointed from the cm roms so

if you can tell me about a stable compatable for daily use with high speed for playing games i will be thankful cm12.1 or 13 if availabe

and i am sorry but i didnt understand this "For games, turn off zram or keep it to a low setting (you can do this in kernel adiutor in the virtual ram panel, just reduce swappiness or turn off it). This should give you performance overall"
 
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Saber

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Apr 9, 2014
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Xiaomi Poco F3
when i tried to read about nightlies all suffer from it and say it was built by a robot so it have errors but snaposhot made by real person so it is good
and i was using snapshot then i was locking in the settings i think i activated cm recovery i think it made the error
when i power on the phone the the title "samsung galaxy sII GT I9100" appear and then no boot animation appear after a while i connected the phone to the charger i felt the vibration then i tried to open the screen lock it was pattern so i was feeling the dots vibration and i succeed to open it all of this i done while the screen was black after this i could not do any thing
i done a factor reset from this i was disappointed from the cm roms so

if you can tell me about a stable compatable for daily use with high speed for playing games i will be thankful cm12.1 or 13 if availabe

and i am sorry but i didnt understand this "For games, turn off zram or keep it to a low setting (you can do this in kernel adiutor in the virtual ram panel, just reduce swappiness or turn off it). This should give you performance overall"

If there was an error during build process, the nightly build would not be released to the public for downloads. I would think you are trying to say more issues, however in our case, the nightlies would have less issues than the current snapshot.

Even though snapshot has 'stable' commits picked usually by a person, it can be still be 'unstable' because in our last snapshot, it didn't include the freezefix that solves a lot of freezing on the s2. It was included in a nightly 20160107 so the only way to stop the freezing was to flash to a newer nightly or flash the kernel by zeitferne or lanchon.

The problem you are trying to describe seems like a behavior before the freezefix was released. A full wipe and clean flash of a recent nightly shouldn't give issues like what you described (unless there is some other reason giving you the issues).

CM13 is not even in beta yet. It is not recommended for daily use as it still doesn't have proper support for internal storage, and still a lot of things are broken.

zram is compressed ram for your device. Since our device struggles on 1GB of RAM on lollipop, we thought that we could make things smoother by adding this 'compressed ram'. However, unaware of the drawbacks, some people thought that it would be better to disable it or tune it to be less aggressive to remove the high CPU stress it gives. So using the instructions i've given, removing zram or making it less aggressive will free up CPU usage which can be used on games. In short, less aggressive zram/no zram = better CPU performance.

gsstudios
 
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M.FANDIES

Member
Dec 8, 2015
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Cairo
If there was an error during build process, the nightly build would not be released to the public for downloads. I would think you are trying to say more issues, however in our case, the nightlies would have less issues than the current snapshot.

Even though snapshot has 'stable' commits picked usually by a person, it can be still be 'unstable' because in our last snapshot, it didn't include the freezefix that solves a lot of freezing on the s2. It was included in a nightly 20160107 so the only way to stop the freezing was to flash to a newer nightly or flash the kernel by zeitferne or lanchon.

The problem you are trying to describe seems like a behavior before the freezefix was released. A full wipe and clean flash of a recent nightly shouldn't give issues like what you described (unless there is some other reason giving you the issues).

CM13 is not even in beta yet. It is not recommended for daily use as it still doesn't have proper support for internal storage, and still a lot of things are broken.

zram is compressed ram for your device. Since our device struggles on 1GB of RAM on lollipop, we thought that we could make things smoother by adding this 'compressed ram'. However, unaware of the drawbacks, some people thought that it would be better to disable it or tune it to be less aggressive to remove the high CPU stress it gives. So using the instructions i've given, removing zram or making it less aggressive will free up CPU usage which can be used on games. In short, less aggressive zram/no zram = better CPU performance.

gsstudios

then if i installed the lastest nightlies by diffault steps the phone will work better on games without alot of errors and bugs like thats in unofficial and snapshot or there is special steps i have to do
 

Saber

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Apr 9, 2014
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Xiaomi Poco F3
then if i installed the lastest nightlies by diffault steps the phone will work better on games without alot of errors and bugs like thats in unofficial and snapshot or there is special steps i have to do
If what you mean by default steps is factory reset, wipe system, flash ROM and gapps (optional), that would be fine.

I like to install custom recovery first to remove cyanogen recovery because cyanogen recovery doesn't have everything people need. After flashing a different recovery, I usually flash the ROM after doing all necessary wipes.

Bugs in unofficial builds would most likely be fixed in official nightly builds. There may be still some minor bugs but nothing major or problematic.

Gsstudios
 

M.FANDIES

Member
Dec 8, 2015
47
8
Cairo
If what you mean by default steps is factory reset, wipe system, flash ROM and gapps (optional), that would be fine.

I like to install custom recovery first to remove cyanogen recovery because cyanogen recovery doesn't have everything people need. After flashing a different recovery, I usually flash the ROM after doing all necessary wipes.

Bugs in unofficial builds would most likely be fixed in official nightly builds. There may be still some minor bugs but nothing major or problematic.

Gsstudios
i think it was better to end cm12.1 with official build and then start on cm13
last thing is there is cm roms for galaxy grand neo plus
 

xn0live

Senior Member
Dec 22, 2012
1,496
380
hi guys which version did u prefer? new nightly or snapshot?

and stock kernel or with dori kernel?
 

Dark1Angel

Senior Member
Apr 3, 2015
141
20
is it sttable and do u have lags?

no lags at all. Right now we're at a point when it's really stable. The snapshot is by no means more stable than nightly, it just has less improvements so there's no point using it(just my opinion). Very few report small issues(read all recent posts and see). I just updated to latest nightly and It's the best so far. latest nightly+lanchon's isorec kernel+isorec twrp recovery+ pico gapps recomanded by lysergic+ trimmer app set on autotrim twice a day and it's the best you can get from lolipop on s2.
 
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M.FANDIES

Member
Dec 8, 2015
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8
Cairo
no lags at all. Right now we're at a point when it's really stable. The snapshot is by no means more stable than nightly, it just has less improvements so there's no point using it(just my opinion). Very few report small issues(read all recent posts and see). I just updated to latest nightly and It's the best so far. latest nightly+lanchon's isorec kernel+isorec twrp recovery+ pico gapps recomanded by lysergic+ trimmer app set on autotrim twice a day and it's the best you can get from lolipop on s2.

do you mean the cm-12.1-20160126-nightlies version
and iam now confused
which is the best stable rom for daily use / playing games / browsing and so on........
nightlies or unoffecial or snaoshot
 
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  • 698
    FxrMKlt.png
    Official nightlies started and there's a thread for it, check it out: Link
    I'll no longer update this project, my focus is now at CyanogenMod 13 (CM13 thread link)​
    Samsung Galaxy SII
    CyanogenMod 12.1​
    CyanogenMod is based on the Android Open Source Project with extra contributions from many people within the Android community. It can be used without any need to have any Google application installed. Linked below is a package that has come from another Android project that restore the Google parts. CyanogenMod does still include various hardware-specific code, which is also slowly being open-sourced anyway.

    All the source code for CyanogenMod is available in the CyanogenMod Github Repo.

    Code:
    #include 
    /*
     * Your warranty is now void.
     *
     * I am 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 me for messing up your device, I will laugh at you.
     *
     * Submitting bug reports on unofficial builds is the leading 
     * cause of male impotence.
     */
    IMPORTANT INFORMATIONS
    - Root is now disabled by default on CM12.1. To enable it go to Settings>Developer Options>Root access and set to Apps only or Apps and ADB.
    - Enable #disable-media-source at chrome://flags to fix some video playback issues with chrome

    Installation Instructions

    - Coming from 5.0 or less ROMS
    • Download cm-12.1-XXXXXXXX-UNOFFICIAL-i9100.zip to your sdcard
    • Make sure you're using a Kitkat Compatible Recovery
    • Boot into Recovery
    • Wipe all your data
    • Flash cm-12-.1XXXXXXXX-UNOFFICIAL-i9100.zip from sdcard
    • (Optional)Flash Google Apps.zip from sdcard
    • Reboot
    - Coming from previous CM 12.1 build
    • Wipe caches
    • Flash cm-12.1-XXXXXXXX-UNOFFICIAL-i9100.zip from sdcard
    • Flash GApps again if you're using PA version
    • Reboot

    Downloads
    ROM: 06/17 Build
    GAPPS: CM GApps

    Changelog
    - Updated CM sources
    - Added fimc usage to the hwc again
    - Fixed seeking on video playback

    Older Downloads


    Video Reviews

    Made by @Troubadour666

    Made by @paramdinkar

    Made by @omkarsathe92

    Special Thanks to:
    @bauner
    @Vivek_Neel
    @rogersb11
    LollipopS2 Team

    If you like my work, consider making a small donation ;)

    XDA:DevDB Information
    CyanogenMod 12.1 Unofficial, ROM for the Samsung Galaxy S II

    Contributors
    Lysergic Acid
    Source Code: https://github.com/CyanogenMod

    ROM OS Version: 5.1.x Lollipop
    ROM Kernel: Linux 3.0.x
    ROM Firmware Required: Kitkat Compatible Recovery
    Based On: AOSP

    Version Information
    Status: Beta

    Created 2014-11-28
    Last Updated 2015-10-12
    166
    A word about official CM12...

    So, I've contacted some people from CM about the official CM12 for our device, being a maintainer and all this stuff.
    They told me that I need to fix the remaining bugs before doing a bringup commit into their gerrit. At first sight we thought that only camera had to be fixed, but after some conversation they told me that jenkins don't compile SELinux disabled/permissive builds anymore. Putting SELinux in enforcing state breaks the RIL on these builds, so this must be fixed too. Then, they told me that only PIE enabled builds go official. My build has PIE disabled because it breaks the GPS when enabled, so, I gotta fix that too.
    They also told me that Codeworks stopped to work on the i9100 6 months ago and denied to work on CM12 for us, which is pretty acceptable because he was supporting us since old ICS days. So no maintainer for CM12.
    If I fix the mentioned problems (which by far is not easy), then I can submit the bringup for review, and if everything goes well they will gladly accept me as an official maintainer and then I can enable the jenkins nightlies.
    As you can see, there's a long road for it, and will probably not happen so soon, but I'll keep you guys informed about the progress of this.
    Sorry for the long text :p
    Regards
    145
    [size=+2]
    F.A.Q[/size]​

    [size=+1]Q. Can i install CM12 over CM11 without wiping data?[/size]
    A. This is not recommended, you have to wipe everything to upgrade from CM11 to CM12

    [size=+1]Q. What recovery does this ROM support?[/size]
    A. You can use Kitkat Compatible CWM recovery to flash it (6.0.4.5+). Also, we'll integrate CWM 6.0.5.1 in future builds as a permanent solution.

    [size=+1]Q. Which GAPPS package should i install?[/size]
    A. You can install "NANO GAPPS" if you haven't re-partitioned your system OR you have stock System Partition size.

    [size=+1]Q. How much System Partition size is needed to flash this ROM?[/size]
    A. you can flash this ROM on your stock system partition but it is recommended to have 1GB System Partition as ART runtime requires more space. also, it's advisable to have more space on system partition if you would like to install standard GAPPS package.

    [size=+1]Q. How can I increase System Partition space?[/size]
    A. You will need to flash PIT file in ODIN or heimdal to re-partition the System space, it is recommended to have 1GB System Partition as ART runtime requires more space. for more details about PIT files & re-partitioning click here : http://forum.xda-developers.com/gal...es/mod-partition-internal-memory-app-t2538947 and here: http://forum.xda-developers.com/gal...ivatives/mod-increase-partition-size-t3011162
    another PIT files are here : http://forum.xda-developers.com/showpost.php?p=50750761&postcount=509

    [size=+1]Q. I didn't like the ROM or I want go back to stock ROM or this ROM didn't worked & want to revert back, how can I?[/size]
    A. Yes, you can revert back to Stock ROM or any other ROM, you can wipe everything & flash the ROM of your choice whether it's stock or AOSP based ROM. Please follow this steps to revert back to your ROM (these steps are for total noob users)
    1 - Go to recovery mode
    2 - Make sure that your recovery is compatible with Kitkat if you are flashing a ROM based on Kitkat. If not then flash a Kitkat compatible recovery (as mentioned above).
    3 - Flash your ROM.

    [size=+1]Q. Can I flash another kernel after flasing this ROM?[/size]
    A. Yes, of course you can flash kernel of your choice, just reboot to recovery & flash the zip.

    [size=+1]Q. I guess I have soft bricked the device, what should i do now?[/size]
    A. Follow the guide here : http://forum.xda-developers.com/galaxy-s2/help/guide-fix-unflashable-soft-bricked-gsii-t1457458

    [size=+1]Q. Can I apply another theme on this ROM?[/size]
    A.Yes, you can search for CM12 themes on xda or on the Play Store, install it and apply the theme from the Themes section on Settings.

    Thanks to @c0d3r!pp3r for the FAQ ;)
    134
    So, we got official

    Official CM 12.1 nightly builds are starting tomorrow: http://review.cyanogenmod.org/#/c/100189/
    Let the **** hit the fan lol
    Congratulations to all of us.
    132
    [SIZE=+1]Unofficial Kernel Builds[/SIZE]​

    [size=+1]Gustavo's Kernel:[/size]
    You can find all the info about this kernel in this thread: http://forum.xda-developers.com/gal...nel-kernel-aosp-roms-stweaks-synapse-t2222843

    [size=+1]Downloads[/size]
    CWM 22/06 build: Link
    Kernel Source: GitHub

    [size=+1]Dorimanx Kernel:[/size]
    You can find all the info about this kernel in this thread: http://forum.xda-developers.com/gal...rnel-3-12-rc6-dorimanx-8-43-jb-i9100-t1617219

    [size=+1]Downloads[/size]
    26/06 build: Link
    Kernel Source: GitHub