Unroot the OnePlus One with Stock CyanogenMod11S Firmware
You have a rooted One Plus One device and now looking for unroot the device and going back to the stock frimware than this post is for you. By going back to the stock frimware you will get your android device’s warranty back.
A trusted site’ XDA developer has developed a toolkit for One Plus One and by using it you can flash the original CyanogenMod 11S firmware. We must thank him for his great effort. Through this tutorial you can also relock the bootloader of you One Plus One device.
– You must have PC running on windows operating system and also charge you phone to atleast 60%
-Make Sure that you have install java plugin to your device.if not then download from here.
-Take a nandroid backup of all of data on your phone.
-A rooted android device must required.
Files to be download:
-One Plus One toolkit for PC.download from xda developer
Now here is the turn to unroot your One Plus One to install cm11s rom:
>first of all is to install and configure up the One Plus One Toolkit:
-First download the toolkit and thereafter install it on your PC(Make sure that you have installed the /java on your PC).
-Once the toolkit window appeared, click on Download ADB Drivers and Install it.
-Now go to phone settings and go to about phone, tap continuously to enable developer options.
-Now tap on Developer Options and enable Android Debugging.
-Now, connect your device to your PC via USB cable.
>Flash Stock CyanogenMod 11S ROM
-Now here ia the turn to open the Toolkit on your PC and select the option ‘Enter Fastboot/Recovery Mode‘.
-Now click on Flash CM11S to flash the original firmware.
-Check the App menu thereafter you will not see the SuperSU app anymore.
>Flash Stock Recovery
-Now again from the toolkit window, here is to select the ‘Enter Fastboot/Recovery Mode‘.
-On Flash Recovery, select the Stock Recovery.
>Finally lock the bootloader
-Now, click on ‘Enter Fastboot/Recovery Mode‘.
-Thereafter, click OEM Lock, after some time your device will restart.
-After all this process gone right, it means you did all things correctly. Follow the right procedure as given above.