

Take a complete backup of your phone without Root and then proceed to the update process.Download and install the ADB Fastboot tools on your computer.Charge your device battery at least up to 60% to avoid interruption during the update process.Make sure that you have installed the latest OnePlus USB Drivers on your PC.The ROM files are exclusively for OnePlus 6/6T devices.Before flashing the OTA zip file, you should follow the mentioned instructions given in pre-requirements.A detailed guide for both methods provided below. Otherwise, you can install the ROM file via ADB Sideload method which is not so hard process but quite lengthy.Then reboot your phone into the recovery mode and flash the firmware file from stock recovery. The phone packs 64/128/256GB internal memory. The smartphone is powered by Octa-core (4×2.7 GHz Kryo 385 Gold & 4×1.7 GHz Kryo 385 Silver) and Qualcomm SDM845 Snapdragon 845 processor coupled with 6/8GB of RAM. In the local upgrade method, you need to download and move the ROM (.zip) file to your device storage. OnePlus 6 features a 6.28-inches display with a screen resolution of 1080 x 2280 pixels with Corning Gorilla Glass 5 protection.In order to install the latest OxygenOS 9.0.9/9.0.17 update on OnePlus 6/6T device, either you can follow the local upgrade method (recommended) or, follow the ADB Sideload method.Steps to Install the OxygenOS 9.0.9/9.0.17 update for OnePlus 6 and 6T
