Download Yureka and Yureka Plus Android 5.1 Cyanogen OS 12.1 (CM12.1) update

YU has finally released the long awaited Android 5.1 update for its Yureka and Yureka Plus sets, and it’s called Cyanogen OS 12.1, often called COS 12.1, or CM12.1 in custom ROMs scene.

This is an official 5.1 Lollipop update for Yureka Plus. We have the full 5.1 update available for download below. Check this out and let us know if you need any help from us in this regard using the comments section below.

What we have here are 100% working fastboot flashable images files, that work both on Yureka and Yureka Plus flawlessly.

You do not need a recovery for this, and once your device is set to work in fastboot mode, which is easy, you can easily install COS12.1 update that comes with Android 5.1 update.

Here you go.



Although installing official firmware doesn’t break your device’s warranty but the process remains unofficial and thus carries some risk as always. You only will be responsible for your device, you have been warned.

Supported devices

  • YU Yureka Plus
  • Don’t try this on any other device than the one specified above.

Use the Droid Info app, to determine the name of your Yureka Plus. If it is the one specified above, then it should be compatible with the 6.0 custom ROM we have here.


Warranty may be void of your device if you follow the procedures given on this page. You only are responsible for your device. We won’t be liable if any damage occurs to your device and/or its components.


Backup important files stored on your device before proceeding with the steps below, so that in case something goes wrong you’ll have backup of all your important files.

How to Install

Step 1. Download the Android 5.1 based Cyanogen OS 12.1 update from above.

Step 2. Now extract the downloaded zip file using a free software like 7-zip. You must get all these files.

yureka plus 5.1 update

You must be having the above files in the folder called yuplus51, okay.

Step 3. Install ADB and fastboot drivers. Also install Yureka Plus drivers.

Step 4. Boot your Yureka Plus into bootloader mode. If you are rooted, you can use Quick Boot app from play store. To manually boot into bootloader mode, do this:

  • Power off the device. Wait for 4-5 seconds after screen goes off.
  • Press and hold Volume Up button and then connect the device to PC using USB cable. You will enter bootloader mode, also called fastboot mode.

Step 5. Now simply run the flash.bat file which automatically flash COS12.1 images to your Yurkea Plus. Double click the flash.bat file to run it.

This will open up a command window, and installation of Android 5.1 update on your Yureka Plus will begin.

The procedure will be complete in some 5-6 minutes, after which it will reboot your device automatically.

That’s it.

To manually reboot, simply open a command window and enter the command given below.

fastboot -i 0x1ebf reboot

Done. Simple, right?

Need help?

Let us know if you need any help with this, via comments below.

Via Jay_Kapoor

Posted by
Kapil Malani

A die-hard Liverpool FC fan, Kapil is a big fan of Batman, Android and street Cricket. In that order, probably. Email:


  1. Hi jay kapoor my YU yureka a05510 phone hai jisma mera rear camera nhi chalu ho RHA hai WO sirf front camera he bata RHA hai maina bohot saray camera app nikal ka check kiya magar kisima bhi mera back camera nhi chalu ho RHA hai or plus merko ota update bhi nhi arha hai iska solution batao mujhe

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