How to Backup and Restore iPhone Data
in 3uTools on the Computer
There is a choice to back up the data before flashing the system.3uTools-> Smart Flash->Easy Flash->Quick Flash Mode->Back up Now1. Click Back up Now before flashing the system.

2. Choose the Backup file path to store the data and start backup by clicking Back up Now.

To restore the data, go to Toolbox in 3uTools.3uTools->Toolbox->Backup/Restore->View all-data Backups->Choose the data->Restore all data

