How to unroot OnePlus 3 and revert to stock OxygenOS firmware

IOnePlus 3 has become one of the most popular and loved phone of this year.There are many developers working on the device.OnePlus 3 was rooted successfully within hours of its release.

.If you own a OnePlus 3 and have rooted it but now want to unroot it, then you are at the right place.Here we will be sharing full detailed guide to safely Unroot OnePlus 3

Here we will be using SuperSu app to Unroot OnePlus 3.Make sure that your OnePlus device is rooted and SuperSu app was installed on your device.Now follow the given steps to Unroot OnePlus 3

How to unroot OnePlus 3

• Download OxygenOS 3.2.1. You might rename this to ota.zip to make the further process a bit easier
• Download stock recovery
• Put the phone in fastboot mode by holding the Power and Volume Up buttons together. Alternatively, use the extended boot menu from Android to boot
• Open Windows Command Prompt in Admin mode in the folder/directory where you have saved the above-downloaded files. If you are a Linux or Mac user, then launch a terminal app on your PC
• Enter the following command in the command prompt to check everything is working properly. Once you enter the command, you should see the serial number of the phone, if not then you might have to install all the drivers for your phone

fastboot devices

• Type in the following command to flash the stock recovery

fastboot flash recovery recovery.img

• Now execute the below command and then follow the on-screen prompts. This step will erase all data of your phone

fastboot oem lock

• Your phone will be in an endless bootloop when it reboots. Don't worry, as this is quite normal
• Boot the phone into recovery mode by holding the Power and Volume Down buttons together
• Choose English as language
• From the main recovery menu, choose the option that says Upgrade via sideload, so that the phone will get into ADB sideload mode

Type adb sideload ota.zip

• The sideload will take some time, after which you need to reboot the phone. Just select Reboot and then press the Power button to confirm the process

You phone will now boot into stock OxygenOS 3.2.1 firmware. The above method has been shared by folks over the OnePlus forum. After you execute fastboot one lock command, all data of your phone will get deleted and then reboot. The phone might get into bootloop, with the phone's screen going completely dark. If that happens, hold the Power button until it reboots. Or, just hold Power and Volume Down together for rebooting.