[ROM][I9100][5.1.1][OFFICIAL] CyanogenMod 12.1 Nightly Builds

[Lysergic Acid]

CyanogenMod 13 nightlies started, checkout its thread!​

CyanogenMod is a free, community built, aftermarket firmware distribution of Android 5.1.1 Lollipop, which is designed to increase performance and reliability over stock Android for your device.

#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 nightly builds is the leading 
 * cause of male impotence.
 */

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. And if you would like to contribute to CyanogenMod, please visit out Gerrit Code Review.

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.
- CyanogenMod 12.1 comes with Cyanogen Recovery by default, if you don't like it you can flash alternative recoveries using IsoRec

I'll not support users and answer questions from users which:
- Are running a custom kernel
- Have flashed mods
- Modified system files
- Didn't follow my instructions
- Are unfriendly

Official CyanogenMod Wiki: http://wiki.cyanogenmod.org/w/I9100_Info
Known Issues: http://wiki.cyanogenmod.org/w/Known_Issues_page_for_i9100
Changelog: http://www.cmxlog.com/12.1/i9100

First time installation instructions:

• Download CM-12.1-XXXXXXXX-NIGHTLY-i9100.zip to your sdcard
• Make sure you're using a Kitkat Compatible Recovery
• Boot into Recovery
• Wipe all your data
• Flash CM-12.1-XXXXXXXX-NIGHTLY-i9100.zip from sdcard
• (Optional)Flash Google Apps.zip from sdcard
• Reboot

CM12.1 official nightly builds:
http://download.cyanogenmod.org/?device=i9100

Recommended Google Apps:
http://forum.xda-developers.com/android/software/tk-gapps-t3116347
Choose Pico version to fit in the /system partition.

If you like my work, consider making a small donation ​

​

XDA:DevDB Information
CyanogenMod 12.1, 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: Nightly

Created 2015-07-01
Last Updated 2016-02-04

 

[Lysergic Acid]

Reserved

 

[essenov]

Thank you for the hard work Lysergic and congratulations for the success so far.
...
Update from latest Unofficial to first Official through OTA was unsuccessful. Now flashing from CM Recovery and will flash GAPPS as the Google services are not working after the OTA update.

edit: gapps still not working after flashing official build + gapps from recovery. Any chance to fix it without factory reset?

Solution: "you can clear the play services data to fix that"
---
update: I got better performance with the first official build compared to the latest unofficial.

 

[gljiva]

Reserved

 

[Weib67]

Congratulations LA.
Hope users will provide useful feedbacks and logcats in this thread to help you make this rom even better.
Cheers !

 

[usman.aaman]

Congratulations

Finally your Hard Work Paid it off.

 

[SaZoN]

Congratulations Lysergic Acid!

 

[abdulhkeem]

there is a way to fix the crashing gapps but it will take mashing the screen to get there just wipe the gapps services data and that fixed it for me.

 

[essenov]

there is a way to fix the crashing gapps but it will take mashing the screen to get there just wipe the gapps services data and that fixed it for me.

Thanks a lot @abdulhkeem, it worked and this saved me a lot of time. :good:

 

[Dr.Fix]

My phone seems very hot under the camera, expecially when leaved attached to AC power... much more than on KK...
I made all the possible wipes/formats and checked with betterbatterystats but I cant find anything strange...

 

[Jleoz]

Thanks so much for this @Lysergic Acid!

I have been following since November last year and all I can say is what an amazing achievement!

Congrats to you and all the great devs that helped you get to where you are now.

Can't wait to see what is to come with the official tag on the ROM now.

Regards,
Jleoz.

 

[essenov]

lost root

Looks like I lost root with the official build. Yes, the root access is enabled in dev options. Tried rebooting, disable-enable, re-flash, still does not have root.

 

[Lysergic Acid]

Thank you for the hard work Lysergic and congratulations for the success so far.
...
Update from latest Unofficial to first Official through OTA was unsuccessful. Now flashing from CM Recovery and will flash GAPPS as the Google services are not working after the OTA update.

edit: gapps still not working after flashing official build + gapps from through recovery.

Any chance to fix it without factory reset?

As already said, you can clear the play services data to fix that, but I'm working on a fix for the backup tool.

 

[Hazard-]

Can't wipe data

I'm unable to wipe data/factory reset from the new cyano recovery. Same thing if i try wiping from settings, is someone having same issue?

 

[gadam40]

@Hazard- Me too, but also I can`t install any *.zip package.

 

[Hazard-]

it says unable to open efs/metadata (more or less). I thought efs folder is untouched on wipe, isn't it?

 

[kostelo]

No APN data available so mobile data can't also be enabled.

 

[FaserF]

Nice!

Great work @lysergicacid !! REALLY THANKS!!!

Now I can only hope, that my S3 will also get Official.
I have just written to @JustArchi , would you tell him what you have done to get official? Thanks!

 

[Dr.Fix]

No APN data available so mobile data can't also be enabled.

Same here, but just search for carrier configuration and create an APN yourself, it's easy!

 

[kostelo]

Same here, but just search for carrier configuration and create an APN yourself, it's easy!

I know my man. I already have. I 'm just reporting the bug in case it was missed.