[5.1.1][2015-08-14][STABLE] Unofficial CyanogenOS 12.1S for i9100 Galaxy S2 Abandoned - Galaxy S II Android Development

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What is this?
This is CyanogenMod 12.1 (based on Lysergic Acid CM12.1) with many features from the well known CM12.1S/Cyanogen OS 12.1 and CM11S made for the OnePlus One. All Apps are successfully ported from CM12S for the i9100 Galaxy S2, Quick Boot funktion is working very well and much more (read at features). The OnePlus One has a great Rom and why not giving the features to you all? That's the great reason why there is now CM12.1S for the S2.
The Rom has all features from Official CM12.1 and much more features are added, too.
I am the Maintainer and Developer of this Rom, but my work is based on Unofficial CyanogenMod 12.1 from Lysergic Acid
For more Inforamtion about the Rom visit the Official Google Plus Community!
Features:
- All CyanogenMod 12 features (and RR features)
- All CyanogenMod 12 optimizations by Lysergic Acid
- OnePlus One bootanimation
- Added Quick Boot feature from Cyanogen OS 12 for OnePlus One [Activate it by opening Developer Options -> Quick Boot]
- All CM12S Apps (f.e Gallery, Camera, ...)
- Full CyanogenOS 12 UI (activate it at Theme App)
- New Wallpapers (made by the great team)
- Build.prop tweaks
- ROM Update Notifier
- much more
Screenshots:
Bugs:
- Panorama Mode in Camera app doesn't work most time, use Google Camera for this instead fixed since V3.0 Beta
- Screencast doesnt work - fixed since V4.0 - sorry Bug is back
- CM Theme Store doesn't work fixed since M1
Maybe more, you have to tell me!
Download Stable Rom Download Part 1 AND Part 2, flash both!
Experimental test build (based on OFficial Nightly)
Recommended GAPPS:
HERE (take Aroma or Pico)
Alternative GAPPS:
HERE
For Changelog visit first Comment.
How To Install:
FROM OTHER ROMS
- Factory Reset/Wipe Data
- Format System
- Format Cache
- Format Dalvik Cache
- Flash ROM
- Flash Gapps
- Reboot
UPDATE THIS ROM
Wipe cache, dalvik and flash the update.zip.
How to improve the battery:
- Try Calkilin Play Service Fix
- Flash NITRO X SPARK [dont know if it brings bugs
- Use your Kernel Config App to improve battery (I can help you with this!)
More are coming as soon as I know more
Other Information:
- Please refrain from talking about other kernels than stock. We can't track every kernel and it's problems, hence, you're using other kernels at your own risk. Please don't report bugs while you're using custom kernels.
- At the moment, this project is considered: STABLE. All core functions should work, ROM shouldn't have any critical issues, and it should work as daily driver.
- Official Google Plus Community for better support and help!
- I don't allow you to publish direct download links to my Rom on other sides or threads! Always use the link of this xda thread somewhere else, no direct download link! (If you still need to make it, please talk with me before!!)
It is also NOT allowed to copy and paste my whole written text for this project on your/other websites!
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. Hard. A lot.
Credit and Contribution:
- Kevin210898 for the idea of porting and porting it to some other devices you can see at the G+ Community
- ChariZardKs for the awesome banner!
- Google
- CyanogenMod
- Lysergic Acid
- OnePlus
- All of the awesome testers out there.
Please donate to me if you like my work by pressing the following button and I will give my best to continue it
-----------------------
More devices with CM12.XS:
- Galaxy S3 i9300
- Galaxy S2 i9100
- Galaxy S2 i9100G
XDA:DevDB Information
[5.1.1][STABLE] Unofficial CyanogenOS 12.1S for i9100 Galaxy S2 [Abandoned], ROM for the Samsung Galaxy S II
Contributors
FaserF
Source Code: http://www.github.com/CyanogenMod
ROM OS Version: 5.1.x Lollipop
ROM Kernel: Linux 3.0.x
Based On: CyanogenMod
Version Information
Status: Stable
Current Stable Version: M2 (Snapshot)
Stable Release Date: 2015-08-14
Current Beta Version: Experimental
Beta Release Date: 2015-07-10
Created 2015-04-22
Last Updated 2015-12-28

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​Changelog:
Final release (Stable) - work in progress, release in December
- bug fixes
- all new CyanogenMod 12 goodies
- generally system stability increasement
- updated cos apps
- some more improvements are planned
M2 (Snapshot) [Stable] - 2015-08-14
- Added Cyanogen OS 12 Per App Themer!
- now based on official cm12.1 nightlies
- fixed Themes (Hexo and Yu)
- removed some more apps, as we need more free system space
- bug fixes and stability improvements
- LockClock is back
- updated Rom update notifier
- updated Truecaller
- added Screencast again
- fixed some bugs in CyanogenThemeChooser
- Screencast is now working!
- many many many more!
M1.1 (Stable Update) - 2015-05-29
- RIL Bug fixes
- cleaned up Updater-Script
- added COS12 YU Theme
- deleted LockClock, to get more free space
- deleted the rest of CM Updater
- Trebuchet bug fixes
- updated Rom Update Notifier to V1.4
- quick boot bug fixes
M1 (Snapshot) [Stable] - 2015-05-26
- Source updates
- deleted Screencast for now (will come back later on)
- fixed ThemeStore
- new bootanimation
- resized Bootanimtion to fit to s2 size
- deleted some apps
- bug fixes
- new CM ThemeShowcase
- MaxxAudioFX Bug fixes
- CameraNext force close bug fixes
- source updates
- added Ambient Core (COS Account manager)
- deleted CM Account Manager
- updated Trebuchet
- updated CMFileManager
- updated Wallpapers
- added Face Lock
- updated Hexo Theme
- added Theme Chooser
- added Wallpaper Cropper
- Rom Update Notifier Bug fixes
- improved battery
- improved performance
- new build.prop tweaks
- updated Nextbit
- some NextCamera fixes like Panorama again
- more
Older Versions:
V 3.0 [BETA] - 2015-05-11
- Updated ROM Update Notifier to Version 1.3
- CM source updates
- old CWM Recovery is back!
- fixed CameraNext Panorama force closes
- updated CameraNext to V2.0.004
- added CM Theme Showcase
- improved battery
- improved performance
- Launcher crashing fixed
V 2.0 [BETA] - 2015-05-05
!It's Android 5.1.1 now!
- CyanogenMod source updates
- fixed Bootanimation
- (hopefully) fixed screencast
- many Bug fixes and improvements
- deleted unnecessary apps, like stock camera, stock FileManager etc and added Oneplus One apps instead
- fixed "failed to install cm theme"
- added ROM Update Notifier V1.1 (made by me @FaserF)
- added Google Connectivity Service
- many build.prop tweaks -> improved battery, performance, ram usage and more:
All build.prop tweaks:
- improved 3G speed
- improved RIL speed
- improved boot time
- camera quality to max
- set camera picture quality to 100%
- improved performance
- improved battery
- improved internet speed
- deleted CellBroadcastReciever (because problems with o2 users like me)
- more
V 1.0 [BETA] - 2015-04-23!
Initial release of CM12.1S
- Source based on Unofficial CM12.1
-Added new Camera Next
- Added Boxer Email
- Added newest Trebuchet
- Added
- Added new Terminal App
- Added new Sound Recorder
- Added new Screencast
- Added NextBit App
- Added MaxAudioFX
- Added new Lockscreen Clock
- Added new Hexo Theme
- Added New Gallery
- Added new Wallpaper made by our awesome Community
- Added newest CM Filemanager
- Added SuperUser
- Added Quick Boot feature from Cyanogen OS 12 for OnePlus One [Activate it by opening Developer Options -> Quick Boot]
- Added New Theme made by @Kevin210898
- Fixed Some Memory Leaks

---

Q&A:
Q: I cant flash this rom, my internal memory / Sytsem partition is too small.
A: Please increasy your system partition first, here is a good guide
Q: Can I dirty flash CM12.1S over Unofficial CM12, CM11 older versions or other Roms?
A: No! You will get many many Force Closes, Bugs, and much more. Don't do this!
Q: Why do I have to flash two parts of this rom to get one rom?
A: Since M2 my rom is based on official cm nightlies, and on official cm nightlies the folders inside /system are hide (not able to edit). Part 1 is mainly the rom and part 2 is the /system folder for this rom.
Q: How to get root access back or is this rom not rooted?
A: This rom is rooted, please enable Developer Options (Tap 7 times on build number in about phone), go to it and enable root access. You can enable there also the Quick Boot feature.
If you don't want to use CM's root access, please flash SuperSu in recovery.
Q: Rom installation/update failed, why?
A: TWRP Recovery is highly recommended for use! CWM is out of date and not made for Android 5.X! So try again with this Recovery by flashing the Kernel after the Rom. When it still does not work to UPDATE, try again with a Clean Flash!
---> Q: How to get TWRP on i9100 S2
---> A: Please download twrp-recovery-flashable.zip from download section and flash it on your device
Q: How do I get on-screen buttons with this rom/how can I activate them?
A: Open CM FileManager (pre installed on your device) and give it root access by opening options and choose mode from safe to root. Then go to /system and open build.prop, once it is opened got to the end and type in: qemu.hw.mainkeys=0
Q: My battery isn't that good and the phone laggs a bit.
A: See more at "How to improve Battery" in OP Thread.
Q: I want to test the RR based build, where is it?`
A: It was moved to the "Other" Folder in GDrive.
More are Coming Soon!

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This is a joke?No screenshots or anything? just show a screenshot.

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GreekDragon said:
This is a joke?No screenshots or anything? just show a screenshot.
Click to expand...
Click to collapse
This Rom will be release tomorrow! Please be patient and wait for it until tomorrow. Screenshots are coming soon. Sorry. But I have written many times that it is coming soon.
FaserF said:
First release will be tomorrow!
Version Information
Status: Beta
Current Beta Version: COMING SOON
Click to expand...
Click to collapse

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One question. is very stable? there is a video playback issues or any annoying issue?

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GreekDragon said:
One question. is very stable? there is a video playback issues or any annoying issue?
Click to expand...
Click to collapse
Rom is in progress. As it is based on CyanogenMod 12.1 it will have some issues.
I can't say which issues it has, I have to test and also I need testers. We will see more by tomorrow. Stay tuned.
But I can say it should be pretty stable and has no nasty or annoying bugs. But keep in mind: First release is BETA. Hope to get a stable version soon
FaserF said:
Other Information:
- Please refrain from talking about other kernels than stock. We can't track every kernel and it's problems, hence, you're using other kernels at your own risk. Please don't report bugs while you're using custom kernels. Only Kernel with help is stock and Apollo Kernel Version 8 Beta 9 or newer!
- At the moment, this project is considered: BETA. All core functions should work, ROM shouldn't have any critical issues, but it's still not ready to mark as stable. However, it should work properly as daily driver.
Click to expand...
Click to collapse

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Waiting for it ...thanx :good:

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i'm really sure saw JustArchi optimization feature 10 min ago

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dokuzcanlicanavar said:
i'm really sure saw JustArchi optimization feature 10 min ago
Click to expand...
Click to collapse
Yeah I thought I was at my Galaxy S3 thread and put in the wrong person now everything is correct.

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QR Code reading?
@FaserF
Is qr-code reading working properly (for whats app web etc.)?

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otti17 said:
@FaserF
Is qr-code reading working properly (for whats app web etc.)?
Click to expand...
Click to collapse
Yeah no problem there. When there should be Problems use Google Camera. This rom contains CM OnePlus One Camera, and maybe has some bugs in first versions.

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kernel.
I have the cyangon 3.0.64-cm-g526d694, build to kernel. Will this work with cm12 OK or do you suggest an alternative? Thanks in advance

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jimbomodder said:
I have the cyangon 3.0.64-cm-g526d694, build to kernel. Will this work with cm12 OK or do you suggest an alternative? Thanks in advance
Click to expand...
Click to collapse
This Rom will come with Apollo Kernel and the Config App pre installed. I think this is the best for our great i9100.
Wait until tomorrow. Then you can test the rom with Apollo Kernel.
But I don't understand your question, what do you mean with will the cyangon 3.0.64-cm-g526d694 kernel work? This is the kernel of your current rom.
Every rom brings is own (maybe sometimes similar) Kernel.
When you are on unofficial CM12 you will have to do a clean flash with this rom.

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[JQUOTE=FaserF;60287892]This Rom will come with Apollo Kernel and the Config App pre installed. I think this is the best for our great i9100.
Wait until tomorrow. Then you can test the rom with Apollo Kernel.
But I don't understand your question, what do you mean with will the cyangon 3.0.64-cm-g526d694 kernel work? This is the kernel of your current rom.
Every rom brings is own (maybe sometimes similar) Kernel.
When you are on unofficial CM12 you will have to do a clean flash with this rom.[/QUOTE]
Sorry auto correct. I meant its build02. I'm pretty sure it can with my ROM as currently I running cm11 snapshot but not the latest version as had issues with that one. My real question is, does the ROM come with the kernel and gapps included?

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subscribe

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f2fs supported?
---------- Post added at 01:39 AM ---------- Previous post was at 01:34 AM ----------
download link not working

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Waiting for the download links, hope to get them soon.

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Will it be stable than lysergic acid version?
I am facing atleast one force reboot a day in that version.
---------- Post added at 11:07 AM ---------- Previous post was at 11:06 AM ----------
Neo.RUS said:
f2fs supported?
---------- Post added at 01:39 AM ---------- Previous post was at 01:34 AM ----------
download link not working
Click to expand...
Click to collapse
Download links are not yet published. Keep waiting.

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tHeKinGmaKEr said:
Will it be stable than lysergic acid version?
I am facing atleast one force reboot a day in that version.
Click to expand...
Click to collapse
Should be the same in terms of stability.
---------- Post added at 03:41 PM ---------- Previous post was at 03:37 PM ----------
Neo.RUS said:
f2fs supported?
Click to expand...
Click to collapse
Sorry, no F2FS support on the s2.