1. If an application in the new mobile phone is the same as that in the previous old mobile phone, the system will judge the APK file in the package file. If the application version of the new mobile phone is higher than that of the old mobile phone, the data of the old version will still be transmitted to the new mobile phone unchanged, and the data version will be upgraded by relying on the data upgrade logic of the application itself. That is, for third-party applications, data migration is fully compatible, unless the application is not compatible with older versions of Android.
2. In terms of system data, only backward compatibility is done, that is, if the system version of the old phone is lower than the system version of the new phone, there is no problem in replacing the phone, and the system data will be migrated to the new phone; If the system version of the old phone is higher than the system version of the new phone, then the data recovery is normal to a certain extent, and the data cannot be fully compatible.
3. Except for SMS, MMS, contacts, and call records, any two mobile phones are fully compatible with the migration of the above four data.