[ROM][5.1][UNOFFICIAL] CyanogenMod 12.1 [R31, 2015-11-29]

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Thanks Meter: 9,840
By fefifofum, Senior Member on 7th April 2015, 05:51 PM
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CyanogenMod is a free, community built, aftermarket firmware distribution of Android 5.1 (Lollipop), which is designed to increase performance and reliability over stock Android for your device.

* 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. 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. You can also view the Changelog for a full list of changes & features.

Install instructions:
  • Reboot into recovery (latest official TWRP recommended).
  • Wipe Data, System and Cache if it's a fresh install.
  • No wipes required if you're updating from a previous version of CM 12.1 (Wipe Cache and Dalvik Cache recommended).
  • Flash ROM + Gapps.
  • Reboot.

Please, read post 2 before reporting bugs or asking questions.

KitKat bootloader/modem is required, you can find it on post 3.

Download links:

XDA:DevDB Information
CyanogenMod 12.1, ROM for the Xiaomi Redmi 1S

jsevi83, Kra1o5, rebelos, Luffy.d
Source Code: https://github.com/armani-dev

ROM OS Version: 5.1.x Lollipop
ROM Kernel: Linux 3.4.x
ROM Firmware Required: KitKat Bootloader/Modem (post 3)

Version Information
Status: Stable

Created 2015-04-07
Last Updated 2015-11-29
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7th April 2015, 05:51 PM |#2  
OP Senior Member
Thanks Meter: 9,840
Bug reports:

Explain how to reproduce the bug and attach logcat and dmesg (if you had a random reboot, also attach last_kmsg). If you don't know how to get those, you can use this app. Please, do not report bugs if you use any kind of mods (like xposed) or third party kernel.

Known bugs:
  • ??

Frequently Asked Questions:

Q) Where are Developer options and Performance settings?
A) Go to Settings > About phone, and press five times on Build number.

Q) How can I enable root access?
A) Go to Settings > Developer options > Root access, and enable it for apps, adb or both.

Q) How can I set 3G only network mode?
A) Open dialer, dial *#*#4636#*#* , open first option "Phone Information", there you can set your preferred network mode.

Q) Why is min cpu freq raising to 1190MHz?
A) It's "touch boost", cpu min freq increases when you touch the screen to give better response. When you don't touch the screen for a couple of seconds, min cpu freq goes back to 300MHz.

Q) How do I update Gapps? (Also useful if you have Gapps related problems).
A) Reboot to recovery. Wipe System, Cache and Dalvik Cache. Install ROM + Gapps. Reboot.

Q) Where should I ask other questions related to this rom?
A) http://forum.xda-developers.com/show....php?t=3075456
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7th April 2015, 05:52 PM |#3  
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Thanks Meter: 9,840
KitKat bootloader/modem files

This zip contains the bootloader and modem files from latest stable international release (MIUI7 V7.0.5.0 KitKat). I made it so users don't have to download and install the official zip, which also includes the rom. It's a flashable zip, so just install it from recovery and reboot (no wipes required).

Firmware https://www.androidfilehost.com/?fid=24052804347850305
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7th April 2015, 05:55 PM |#4  
vismaiy's Avatar
Senior Member
Flag mumbai
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Thanks for the efforts!! The only people stick to redmi 1s because you people keep on developing ROMs for it!!
And just a reminder guys, it's TESTING/BETA version and not stable😉
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7th April 2015, 05:55 PM |#5  
sinnerz2000's Avatar
Senior Member
Flag Bangalore
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Was that "nasty bug" solved? The one you were talking about @jsevi83
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7th April 2015, 05:58 PM |#6  
BATVIC's Avatar
Senior Member
Flag Karur
Thanks Meter: 140
Our waiting is over,cm12.1 is here,jsevi83 and kra1o5 and other devs are rocking...
You only make the redmi 1s very easy to use and because you only redmi 1s is rocking and great...
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7th April 2015, 06:00 PM |#7  
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Originally Posted by sinnerz2000

Was that "nasty bug" solved? The one you were talking about @jsevi83

i guess the answer is Yes , thats why you are seeing R1
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7th April 2015, 06:01 PM |#8  
Senior Member
Flag New Delhi
Thanks Meter: 68
What are you guys, it seems you guys never sleep,

totally hats off to you
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7th April 2015, 06:02 PM |#9  
neonkat's Avatar
Senior Member
Flag lost
Thanks Meter: 2,941
Need help..will clean cache and dalvik cache and flash cm12.1 on cm12.0 r4 work?

Sory for pour english
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7th April 2015, 06:06 PM |#10  
Flag Hanoi
Thanks Meter: 6
Thanks devs so much
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7th April 2015, 06:08 PM |#11  
Senior Member
Flag Pune
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I can not thank you enough, but I will anyway.

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