[Nexus 7 Original Development] Thömy:
CyanogenMod is a free, community built, aftermarket firmware distribution of Android 5.0 (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.
*/

CyanogenMod is based on the Android Open Source Project with extra contributions from many people within the Android community. All the source code for CyanogenMod is available in the CyanogenMod Github repo. And if you would like to contribute to CyanogenMod, please visit Gerrit Code Review. You can also view the Changelog for a full list of changes & features.

IMPORTANT INFORMATIONS

We will not support users and answer questions from users which:

are running a custom kernel

have flashed mods

modified system files

didn't follow our instructions word by word

are unfriendly

WIKI

Official CyanogenMod Wiki: http://wiki.cyanogenmod.org/w/Grouper_Info

INSTRUCTIONS

First time installing CyanogenMod 12.0 to your Nexus 7 or coming from another ROM:

Read the official Wiki page

DO A BACKUP

Unlock your bootloader if you haven't done so already

Flash the preferred (touch / non-touch) Grouper recovery image from http://www.clockworkmod.com/rommanager via Fastboot

DO A DATA WIPE / FACTORY RESET

Push GApps and the CM 12.0 zip to your device

Boot into Recovery

Flash the CM 12.0 zip from SD card

Flash GApps for Lollipop from SD card

Reboot (be patient, "optimizing apps" takes a while)

Don't restore system data using Titanium Backup!

Restoring Apps + Data might cause problems and is not recommended, avoid it if possible!

Upgrading from earlier version of CyanogenMod 12.0:

Push the new CM 12.0 zip to your SD card

Boot into Recovery

DO A BACKUP

Flash the CM 12.0 zip from SD card

Optionally flash the most recent GApps for Lollipop if you encounter problems

Reboot (be patient, "optimizing apps" takes a while)

Upgrading from CyanogenMod 11.0:

Read the last paragraphs from http://www.cyanogenmod.org/blog/the-l-is-for-lollipop

DO A BACKUP

Push GApps and CM 12.0 ZIP to your SDCard

Boot into Recovery

Flash the CM 12.0 zip from SD card

Flash GApps for Lollipop from SD card

Reboot (be patient, "optimizing apps" takes a while)

DOWNLOADS

Official CM 12.0 builds: http://download.cyanogenmod.org/?device=grouper

ClockworkMod-Recovery: http://www.clockworkmod.com/rommanager (search for "Google Nexus 7")

Google Apps: https://s.basketbuild.com/filedl/gapps?dl=gapps-lp-20141109-signed.zip

CM compatible F2FS recovery: https://www.androidfilehost.com/?fid=95916177934528848

BUGS

Report bugs for nightly builds at https://jira.cyanogenmod.org/browse/NIGHTLIES. Please keep in mind that not all features are implemented yet and bugs are expected at this stage.

XDA:DevDB Information

CyanogenMod 12.0, ROM for the Nexus 7

Contributors

Thömy

ROM OS Version: 5.0.x Lollipop

ROM Kernel: Linux 3.1.x

Based On: AOSP

Version Information

Status: Nightly

Created 2015-01-08

Last Updated 2015-02-14