How to link my device?
① Upgrade your system to the latest version
Settings – System – System update
② Open Settings
Head to settings on the phone and tap on the profile section on top of the settings page.
③ Login
Log into your profile with a OnePlus account.
④ Link your phone
Click on "Link device" or a phone icon to link your device.
① Upgrade OnePlus Store app
Upgrade OnePlus Store app in Google Play to the latest version.
② Open OnePlus Store app
Go to "Support" section.
③ Login
Login with your OnePlus account.
④ Link your phone
Click on "Link device" to link your device.