•Enable OTG Connection on your OPPO phone through the path provided above. If the OTG connection is grayed out, the OTG connection is already enabled.
•Insert a compatible OTG drive on your OPPO phone. After inserting the OTG, insert the USB flash drive on the OTG drive and allow the *permissions that appear on your screen.
•Tap [OTG]. You will see all the folders from your USB flash drive and then tap the file you wish to transfer.
•Tap and hold the file and tap [Copy] or [Move]. Then select a folder where you want to move the file.
•Tap [Phone storage] or to a folder where you want to move it, then tap a folder under it and tap [Move to here].
•If you have an SD card inserted into your phone, you may move the file to a folder on your SD card and tap [Move to here].