UNOFFICIAL CyanogenMod 12.1 for the Samsung Galaxy Nexus
Introduction
I first decided to put together this Lollipop ROM using the old graphics drivers for those of us who wished to try Lollipop, but needed full camera functionality (i.e. barcode scanner apps, or any other app that uses the camera API). At this point, it looks as if the camera has been fixed to work with the newer GPU drivers. I will continue to develop this ROM using the older drivers until all of the major kinks are worked out (both DDK and non-graphics related included) and we have a 100 percent stable release. You are welcome to try my build which does offer some unique features and will continue to be improved upon and synchronized with the CyanogenMod sources.
Please note that you can NOT use any other kernels with this ROM!! I have added a number of additional features to the kernel including custom voltage, fast charge, and color adjustment so hopefully that will satisfy enough for the time being.
I welcome any and all feedback, including bug reports and feature requests. The Galaxy Nexus is my main phone, and this ROM has been stable enough to be my daily driver since I began developing it several weeks ago.
Additional Features Specific to this ROM
CyanogenMod Features
Kernel Features
Instructions
First flash:
Upgrade:
If you are using F2FS, boot will hang for a bit longer on the Google Logo before animation starts.
Initial boot will take longer than it does with other 5.1 ROMS because this ROM is deodexed. My main reason for doing it this way is so that I can make modifications to individual framework files without having to flash the entire /system partition. The downside is that the initial boot after a wipe of the dalvik-cache will take marginally longer because it has to rebuild the caches for all of the system apps. If you do this while you still have a full compliment of user apps installed - i.e. after an upgrade, the boot sequence could take a REALLY long time - so be prepared for that. Personally, I feel that this is a small enough inconvenience and the benefits outweigh the drawbacks.
Downloads
Latest Build
cm-12.1-20151223-UNOFFICIAL-maguro.zip
Changelog: 12/23/2015
Google Apps
http://wiki.cyanogenmod.org/w/Google_Apps
Recommended Apps
Dark Material - CM12 Theme UI (Awesome looking Dark Theme for CM12/12.1)
TouchControl (Custom wake gestures, i.e. dt2w, s2w, etc. Choose "Ponury Stock Modified" kernel module)
3C Toolbox
Trickster MOD Kernel Settings
AZ Screen Recorder - No Root
Tips / Recommendations
Bugs
Disclaimer
Thanks To/Credits
XDA:DevDB Information
CyanogenMod 12 (UNOFFICIAL) ROM for the Samsung Galaxy Nexus, ROM for the Samsung Galaxy Nexus
Contributors
zzpianoman
Source Code: https://github.com/zzpianoman
ROM OS Version: 5.1.1 Lollipop
ROM Kernel: Linux 3.0.101
Based On: CyanogenMod
Version Information
Status: Alpha
Created 2015-03-23
Last Updated 2015-09-15
Introduction
I first decided to put together this Lollipop ROM using the old graphics drivers for those of us who wished to try Lollipop, but needed full camera functionality (i.e. barcode scanner apps, or any other app that uses the camera API). At this point, it looks as if the camera has been fixed to work with the newer GPU drivers. I will continue to develop this ROM using the older drivers until all of the major kinks are worked out (both DDK and non-graphics related included) and we have a 100 percent stable release. You are welcome to try my build which does offer some unique features and will continue to be improved upon and synchronized with the CyanogenMod sources.
Please note that you can NOT use any other kernels with this ROM!! I have added a number of additional features to the kernel including custom voltage, fast charge, and color adjustment so hopefully that will satisfy enough for the time being.
I welcome any and all feedback, including bug reports and feature requests. The Galaxy Nexus is my main phone, and this ROM has been stable enough to be my daily driver since I began developing it several weeks ago.
Additional Features Specific to this ROM
- F2FS support for /data and /cache. System must be ext4.
- LegacyCamera app included (more stable and lots of features)
- Lower screen brightness during boot sequence (/etc/init.d/96screendim)
- Adjusted minfrees for better multitasking
- Xposed for Lollipop compatible*
- Specify maximum number of recent apps (ro.config.max_recents)
- AppOps control for platform signed apps (ro.appops.show_platform)
- Ability to turn off the display during the boot sequence
- Support for UnifiedNlp
- Volume keys can wake/boot phone from offline charger mode
- Additional AppOps (read phone info/other accounts)
- Less frequent notifications
- Emergency Battery feature
- More QS Tiles: Reboot/Recovery, Screenshot, Screen Off
- Setting to disable Media Scanner on boot
- Volume keys can wake/boot phone from offline charger mode
- Expanded Notification Panel width in Landscape Orientation
- Disable USER apps from the Applications Manager
- Whitelist apps to prevent them from being killed
- Recents Privacy: hide app content from appearing in recents cards*
- Cell/Wifi scan AppOp
- Wakelock Blocker
- NEW: Alarm Blocker
- NEW: Marshmallow bootanimation
CyanogenMod Features
- Better AppOps, including the ability to block wakelocks and alarms.
- Status bar mods (brightness control, weather, battery icon style, double-tap to sleep)
- Navigation bar customizations
- Button mods (volume wake, volume cursor)
- Color/Gamma calibration
- Battery light enable/disable
- CyanogenMod DSP
- Scramble for PIN layout on lockscreen
- Advanced reboot menu
- Charging LED ON/OFF
- Theme Manager
- Additional Quick Settings tiles (ADB over network, compass, profiles, NFC, hotspot, AudioFX, screen timeout)
- More pattern lock sizes (3x3, 4x4, 5x5, 6x6)
- and more!!!
Kernel Features
- CPU frequency slots: 230-1632Mhz
- CPU governors: dyninteractive, interactive, conservative, ondemand, ondemandplus, userspace, powersave, performance, ktoonservative, zzmoove
- Min Screen On / Max Screen Off
- I/O scheduler: row, zen, noop, deadline, cfq, sioplus
- TCP congestion control: cubic, reno, bic, westwood, htcp
- Fast Charge (with data transfer)
- GPU Overclock (max 512MHz)
- IVA Overclock
- SmartReflex: Core, IVA, MPU
- SmartReflex: Min calibrated voltages
- Custom Voltages
- Custom Regulator Voltages: VAUX3_6030, VAUX1_6030, VMMC, VANA, V2V1, VDAC, VCXIO, VUSIM, VMMC, VUSB
- Color Settings (gamma offset, color multipliers)
- I/O Accounting (see this post for more information).
- Vibrator Intensity
- Headphone Volume Boost
- lowmemorykiller whitelist
- Emergency Battery Reserve (see this post for details)
- GPU governors (on3demand, activeidle, onoff, userspace)
Instructions
First flash:
Unlock & install a recovery
Wipe data & cache partitions
Flash CM-12.1
Install the Google Apps package
Reboot
Wipe data & cache partitions
Flash CM-12.1
Install the Google Apps package
Reboot
Upgrade:
Make a backup in recovery
Flash CM-12.1
Install the Google Apps package
Reboot
Flash CM-12.1
Install the Google Apps package
Reboot
If you are using F2FS, boot will hang for a bit longer on the Google Logo before animation starts.
Initial boot will take longer than it does with other 5.1 ROMS because this ROM is deodexed. My main reason for doing it this way is so that I can make modifications to individual framework files without having to flash the entire /system partition. The downside is that the initial boot after a wipe of the dalvik-cache will take marginally longer because it has to rebuild the caches for all of the system apps. If you do this while you still have a full compliment of user apps installed - i.e. after an upgrade, the boot sequence could take a REALLY long time - so be prepared for that. Personally, I feel that this is a small enough inconvenience and the benefits outweigh the drawbacks.
Downloads
Latest Build
cm-12.1-20151223-UNOFFICIAL-maguro.zip
Changelog: 12/23/2015
Google Apps
http://wiki.cyanogenmod.org/w/Google_Apps
Recommended Apps
Dark Material - CM12 Theme UI (Awesome looking Dark Theme for CM12/12.1)
TouchControl (Custom wake gestures, i.e. dt2w, s2w, etc. Choose "Ponury Stock Modified" kernel module)
3C Toolbox
Trickster MOD Kernel Settings
AZ Screen Recorder - No Root
Tips / Recommendations
Bugs
- Gesture typing doesn't work on stock keyboard but does work on Google Keyboard
Disclaimer
I'm not responsible for bricked devices (honestly, has anyone actually ever bricked a GNexus?), data loss, lack of rhythm and coordination. Please remember to ALWAYS make backups before you flash and if you are changing filesystems on /data, you will lose ALL DATA which includes everything on internal storage and the recovery will NOT give you any warning before it performs this highly destructive act, so just be aware! Thanks and enjoy!
Thanks To/Credits
Code:
[URL="http://www.cyanogenmod.org/"]CyanogenMod[/URL]
[URL="http://xdaforums.com/member.php?u=3390093"]MWisBest[/URL]
[URL="http://xdaforums.com/member.php?u=2633638"]Ziyan[/URL]
[URL="http://xdaforums.com/member.php?u=3623306"]Dirty_Jerz[/URL]
[URL="http://xdaforums.com/member.php?u=4608636"]bsmitty83[/URL]
[URL="https://github.com/Liquidsmooth"]LiquidSmooth[/URL]
[URL="https://github.com/slimroms"]SlimRoms[/URL]
[URL="https://github.com/omnirom"]omnirom[/URL]
XDA:DevDB Information
CyanogenMod 12 (UNOFFICIAL) ROM for the Samsung Galaxy Nexus, ROM for the Samsung Galaxy Nexus
Contributors
zzpianoman
Source Code: https://github.com/zzpianoman
ROM OS Version: 5.1.1 Lollipop
ROM Kernel: Linux 3.0.101
Based On: CyanogenMod
Version Information
Status: Alpha
Created 2015-03-23
Last Updated 2015-09-15
Last edited: