The deleted contacts are recoverable no matter with or without backup. You can choose to restore them from iCloud.com or selectively restore them without backup.
✭The program used in this video✭ [ Ссылка ]
This video will tell you how. If you want to know the detailed steps of recovering deleted contacts from iCloud or iTunes backup, check the link below.
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✭Restore deleted contacts from iCloud/iTunes Backup✭
[ Ссылка ]
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User guide: [ Ссылка ]
