Contacts
Call History
Messages
Photos
Audio Tracks
Videos
Notes
Apps
Downloads
Documents
More
Make sure you have the latest operating system and download the Clone Phone app via Google Play.
Open the [Clone Phone] app, select [This is the new device] and then select the type of the old phone. A QR code is displayed in the upper part of the screen for connecting.
Open the [Clone Phone] app on the old phone, select [This is the old device] and scan the QR code on the new phone screen. The two phones will be connected.
Log in to iCloud of the iOS device, and enable synchronization options such as [Contacts] and [Photos] in iCloud as required. Open the [Clone Phone] app on the OnePlus phone, select [This is the new device] and then select the type of the old phone as iPhone.
Open [Clone Phone] on the iOS device, select [This is the old device] and then select the data you want to migrate. Use iOS device to scan the QR code in the OnePlus phone screen to connect the devices. Select [Start migration] to migrate the data.
To back up data to the cloud, you can go to [Settings] - [System settings] - [Back up and reset] - [Back up & migrate] - [Cloud backup]. Then select a type of data to be backed up, and tap [Start Backup]. You can back up your contacts, message, call logs, photos, audio files, documents and system data (Home screen layout and more) to the cloud.
Open [Clone Phone], and go to [This is the new device] - [Cloud backup]. You can select the backups you want to restore. Then select the types of data to be restored , and tap [Start].