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[ROM] [5.1.x] Unofficial CyanogenMod 12.1 Nightly Builds (Z00A/Z008)

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By crpalmer, Inactive Recognized Developer on 24th July 2015, 12:03 PM
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CyanogenMod is a free, community built, aftermarket firmware distribution of Android 5.1.x (Lollipop), which is designed to increase performance and reliability over stock Android for your device.

#include <std_disclaimer.h>

 * Your warranty is now void.
 * We are 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 us for messing up your device, we will laugh at you.
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. You will need to provide your own Google Applications package (gapps). 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 our Gerrit Code Review. Your changelog is whatever was merged into gerrit.


First time flashing CyanogenMod 12.1 on your device, or coming from another ROM?
Download the zip(s).
Install a compatible Recovery
Perform a NANDroid backup of your current ROM (Optional)
Wipe data & cache partitions of your device (required when coming from stock!).
Flash CyanogenMod.
Optional: Install the Google Apps addon package.

Broken Features / Known Issues
  • audio lag in some games
  • dialer shows an ugly screen on incoming calls
  • drm support is broken (e.g. play movies)
  • package manager sometimes installs x86 libs when it needs arm libs (causes some apps to not work at all)
  • selinux enforcing mode
  • sim 2 cannot be disabled
  • sim 2 audio quality issues when also on a call on sim 1 (unconfirmed)
  • USB UMS (Mass Storage) - Killed off for now, MTP works just fine

Other Issues?

Before posting on this thread, make sure of a few things:
You've utilized the search function of the forums. Nothing irritates me more than lazy people who do not search for an answer before asking or ask the same question over and over again.
If you are the only one having a problem. Boot into recovery, wipe data/factory reset, reflash the rom/gapps and nothing else. Boot up and see if the problem persists.
Make sure your post is relevant to this thread. "I'm having problems rooting/unlocking" is NOT relevant here.
LOGS LOGS LOGS!!!! Use this: SysLog by Tortel

As the Zenfone2 has multiple models from multiple countries please include the following information in your report:
model #
CPU Speed / RAM Size
device state when errors occur (BT/wifi/nfc on ? On a call ? sitting idle on shelf ? )
method to reproduce if you've found something consistent

Download Links

CyanogenMod for Z00A/ ze551ml: ROM @

CyanogenMod for Z008/ ze550ml: ROM @

Recovery Links

CM Recovery CM Recovery @
theSSJ's TWRP: XDA thread
Official TWRP: TWRP.ME
Unofficial F2FS TWRP: jrior001's unofficial twrp

CM Recovery CM Recovery @
Unofficial F2FS TWRP: jrior001's unofficial twrp
theSSJ's TWRP: XDA thread

Google apps addon:
Recommend GAPPS for now as the updated x86 gapps.

Flashable Modem updates:
Currently only supported in jrior001's unofficial TWRP
May or may not work in others

** see this post for more info **
Intel stores some modem firmware in the OTA's in a file labeled ""
These are flashable zips to receive the updated firmware while staying on custom ROMS

IF you still wish to proceed, current flashable ifwi zips are available HERE for Z00A AND Z008

XDA:DevDB Information
Unofficial CyanogenMod 12.1 Nightly Bulids (Z00A/Z008), ROM for the Asus ZenFone 2

crpalmer, jrior001, hharte
Source Code:

ROM OS Version: 5.1.x Lollipop
ROM Kernel: Linux 3.10.x
ROM Firmware Required: stock base

Version Information
Status: Beta

Created 2015-07-24
Last Updated 2015-10-02
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24th July 2015, 12:03 PM |#2  
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Known issues are know in the first post so that all the maintainers can updated it and keep it current.
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24th July 2015, 12:03 PM |#3  
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Does Official TWRP work?
* Only if they have the device called Z00A. As of the initial release the official TWRP did not but will likely soon be named properly.
* If it doesn't work,arecovery from the OP.

Can I use a custom kernel with these builds?
* No, there are no custom kernels build based off of our source tree, using our defconfig and which contain the proper ramdisk.
*Also, doing so makes any feedback useless to us because the kernel and the ROM are a complete package and changing part of that means you may have broken something beyond our control.

Will this be an Official ROM?
* When all the show stopping bugs are fixed and all the upstream commits are merged, yes.
* Until then, no because CyanogenMod has very high standards for accepting new devices.

What about the Z008 aka ze550ml?
* Right now none of the developers who are working on the development own one and therefore we can't support it.
* One of the developers working on this said he was purchasing one (even though he already owns the ze551ml). When he gets it and has time to work on it we may see it. Without us owning the device though, there will never be support for it.

Do I need to unlock the bootloader?
* Yes.
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24th July 2015, 12:42 PM |#4  
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thanx Chris, a zillion people have been waiting for your hard work and quality as always , thankyou chris,,steve
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24th July 2015, 12:51 PM |#5  
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Finally !!!!!!! Damm Finally !!! Thanks a lot man !! been waiting for this so long !! Finally some development !! Thank You
24th July 2015, 12:53 PM |#6  
knitesh813's Avatar
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More 12.1 has landed on zenfone 2
24th July 2015, 01:41 PM |#7  
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Originally Posted by knitesh813 12.1 has landed on zenfone 2

This TWRP recovery work??

Thank You for your work!
24th July 2015, 01:44 PM |#8  
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Originally Posted by john_petrucci

This TWRP recovery work??

Cannot confirm but there should be an official twrp update later today that will for sure.

Sent from my ASUS_Z00A using XDA Free mobile app
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24th July 2015, 01:47 PM |#9  
TheSSJ's Avatar
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Just as info and to avoid questions: My TWRP should be working here as ro.product.device is set to Z00A
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24th July 2015, 02:03 PM |#10  
Mrinal Roy's Avatar
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OMG....OMG......can't wait to flast it....!
24th July 2015, 02:07 PM |#11  
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Please someone give me a review.
How about memory leak?
How about battery?
Thankyou very much
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