So here in this article we will look at how you can get the update easily on your phone OTA (over the air) and just do two manual steps to install it.
N.B. : This method does not require rooting and leads to no loss of data or warranty.
BEFORE COMMENTING THERE IS NO DOWNLOAD LINK PLEASE MAKE SURE YOU READ THE WHOLE ARTICLE TO UNDERSTAND THAT THE APP LINKED DOWN BELOW WILL DO THE DOWNLOAD FOR YOU FROM CYANOGEN SERVERS AND THUS THERE IS NO SEPERATE DOWNLOAD LINK PROVIDED.
There is one thing though that you need to ensure before you go ahead with this method. That is whether your Yuphoria is on COS 12.0 or stock AOSP Android, this update method is only for the COS 12.0 devices in which no modifications to the recovery has been made.
To check go to Settings>About Phone and check if you have CyanogenMod ROM.
Make sure you have atleast 80%+ battery before starting or keep charger connected.
Once that is ensured you can go ahead..
Make sure you have atleast 600MB of space free on your internal storage. Make sure you are on WiFi as the download size is around ~568MB.
Go to the Play Store and download Cyanogen Update Tracker app and install it. Open the app and set it up. Select Yu Yuphoria as the device and select incremental as the update type.
After you set up the app you will see that there is a new update of the download size of around 568MB, hit on download and let the download complete. The download file is present in Internal Storage>Downloads.
(It is advised to keep the phone aside while the download is on to ensure that you do not interrupt the connection as the file size is big)
The next step is to install. TURN OFF YOUR PHONE. Press Vol down+Power button together until you feel a vibration and see the YU logo and then you can let go of the buttons.
To operate inside the recovery : Volume button to go up or down, power button to select.
Select Install Update>Internal Storage>Downloads>Select cm-…file there.
Let the update complete by itself and reboot automatically. Once all that is done you will find your Yu Yuphoria updated to COS 12.1 successfully.
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