When contacts are exported from both old and new phones, the VCF files generally come in different formats and versions. If you do it manually, it becomes very confusing and risky. I had the same issue while combining contacts from my previous Android and a new iPhone. I solved my problem by using the most reliable solution, Softaken Merge vCard Software. It merges all VCF files from both phones into one clean and organised vCard without losing any details. Every phone number, email, address, and company field stays accurate. The tool supports all vCard versions, works offline, removes duplicates, and handles large contact lists easily. The interface is simple, so anyone can manage the merging process without errors. For a smooth and safe merge, get the free demo or download now for best results.