[DISCUSSION][ROM][5.1]CyanogenMod 12.1 for Bacon[OFFICIAL Nightlies]

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Senior Member
Oct 20, 2014
Where did you get it from? It's not included in latest nightly, because I can see "modem is already up to date" during installation and I'm on 241 modem. I would not suggest flashing your file, since it seems to be not official.

It's from Hydrogen OS.

But I would do a bit of research before flashing it, I've read about some problems here and there iirc.
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Senior Member
Jan 19, 2012
It IS taken from Hydrogen OS!
Breaks the proximity sensor on official CM12.1 Nightlies
but works fine on Sultan's CAF Builds.

edit: and in case there will be another post here as seen on other threads like "my sim is not recognizzzed after flashing the new modem111111!",
you have the wrong TWRP version. Learning by reading, not asking!
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Senior Member
Nov 22, 2012
It is being worked on constantly:

Unfortunately there were no bacon specific commits so far, apart from universal qcom caf stuff.
As far as I know, there are no unofficial builds out in the wild for other devices which means
that they probably are still bringing the base up to speed...
Will cm13 support f2fs from the start or will it only be supported later like with 12.1?


Senior Member
Jan 19, 2012
what are the benefits of f2fs over ext4 ? Did anyone do some storage benchmarks between those two?

I was using F2FS for over two weeks and went back to ext4.
Did not run any benchmarks but I did not see or feel a difference.
Same fluidity, same loading times, same multitasking.


Senior Member
Aug 27, 2013
Theoretically, f2fs should be faster because it's meant to be used on flash memory. But difference will not huge. So it can be even not noticeable or barely noticeable.

Storage benchmarks, like androbench can show exact difference, but don't expect any big difference in everyday use.
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Senior Member
Dec 28, 2009
Someone also has the problem of sound with the handsfree microphone that cuts out during calls and we must remove the hands-free kit and return it?


Senior Member
Nov 14, 2010
If i apply a theme the navbar changes right, but when i reboot the phone, the navbar resets its self to the default system navbar's theme. Is there a fix for that? I made clean installation of cm12.1 build, it is weird.
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    CyanogenMod 12.1 (Android 5.1) Official Nightlies Discussion Thread

    CyanogenMod tries to build a new, fresh "nightly" version every 24 hours for each of the devices it supports, which includes the most up-to-date changes to the source code, provided from all over the Internet. Of course, the nightly builds may also contain newly-introduced bugs, but hey- if you feel adventurous, you can help make CyanogenMod better by trying these experimental builds and reporting back bugs to the developers.

    Source: wiki.cyanogenmod.org


    Download Links:
    1. CM12.1 ROM: http://download.cyanogenmod.org/?device=bacon

    2. Android 5.1 Gaaps:

    Flashing Instructions
    Comprehensive installation instructions for CM on the OnePlus One can be found on the CyanogenMod Wiki: http://wiki.cyanogenmod.org/w/Install_CM_for_bacon

    Note: If you are flashing from CM11/CM12, you MUST flash 5.1-compatible gapps after flashing the ROM!

    1. Download the nightly and move it to your SD card.
    2. Download gaaps and move it to your SD card. [This step is optional.]
    3. Reboot into the custom recovery of your choice.4A. Flashing dirty from CM11/12: Wipe cache/dalvik cache.
    4B. Flashing clean: Full wipe.
    5. Flash cm-121-2015xxxx-NIGHTLY-bacon.zip.
    6. Flash gapps.zip. If flashing dirty from CM11/12, then you must reflash 5.1 compatible gapps (link above).
    7. Reboot

    For those having problems with apps crashing:
    1. If you didn't wipe cache / dalvik-ART from recovery when you flashed 12.1 over 12.0, go back and do that first.

    2. If you still have FCs, go to Settings » Apps, find the offending app and click Clear data.

    3. Still no go, time to do a factory reset.

    This is a pre-rooted ROM, so there is no need to flash SuperSU!

    1. Enable Developer options by going to System » About tablet and clicking Build number rapidly 5-7 times.
    2. Under Developer options, click Root access and select Apps only, then Ok.

    That's it!

    Known Issues:
    (I will keep this updated)
    • Camera still splits the exposure when using the flash
    • You tell me
    Starting from CM12.1 today's nightly, a new sound panel is included in power menu, whose source code has been written by me.
    To enable it, go to Settings - Buttons - Power menu and enable "sound panel".
    This sound panel is available for all devices supported by cm12.1.
    If you have problems, please let me know.

    post to androidfilehost, that seems like a great place for a rom.

    1. Too much work for a one-off.
    2. My DSL connection is currently rather flaky, so uploads probably wouldn't finish (thanks AT&T...)
    3. With all these things, there nowadays unfortunately are too many people asking for support, and I have neither time nor patience for that.

    I may upload it to my own webserver. I prefer to be in control... But that depends on my DSL connection staying up...

    Update: It should now be available via torrent:
    md5: 2c8383584fd2ccc451969e9836fcd36d cm-12.1-20150521-UNOFFICIAL-bacon.zip
    When will be ready CM13.0 for OnePlus One?
    Exactly some number of minutes after soon.
    For the new CM 12.1 nightly (post 20150418), you have to use the official Cyanogen recovery for properly restore your current GApps. An alternative solution for now, a modified TWRP with current CM 12.1 kernel (f2fs support included): http://goo.gl/G2T5yY Please check http://review.cyanogenmod.org/#/c/95349/

    Too lazy to set up TWRP recovery build for now, please tell TWRP developer about this transparent lz4 compressed ext4 issue.
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