If you ever were already searching for the original OPPO Stock Firmware ROM for OPPO Devices, then these pages might be extremely helpful to you actually. Here the easy download OnePlus Stock Firmware link for the latest flashing file.
After Downloading the OPPO Stock Rom (firmware) zip file, follow and See the how to flash tutorials and download official (original) OnePlus USB Driver with OPPO Stock Firmware update Flash Tool here.
