When transferring data from one iPhone to another, many users encounter hurdles that can make the process frustrating. In my personal experience, issues like "iPhone transfer failed" or "data transfer not working" often happen due to unstable Wi-Fi connections, insufficient battery charge, or outdated iOS versions on either device. To improve your transfer success, ensure both iPhones are connected to a stable Wi-Fi network and plugged into power sources during the process. Also, before initiating the transfer, update both iPhones to the latest iOS version; this reduces compatibility issues. If you're using Quick Start, make sure that Bluetooth is enabled and the devices are close to each other. For users transferring via iCloud Backup, confirm that there’s enough storage on iCloud and that the backup is recent and complete. In my case, sometimes the transfer stops or displays errors, which can be fixed by restarting both iPhones and retrying. If a particular app or message thread doesn't transfer, manually backing up that data or exporting important conversations before the transfer can be helpful. The OCR text from screenshots like "Waiting for the shade i want" or "Transferring Data from 'DIGNAIPHONE' to vivo Y16" highlights the typical waiting and monitoring involved in the transfer process. Patience can be key, and if errors occur, checking prompts and following troubleshooting steps often resolves the problem. Overall, keeping devices charged, updated, and connected properly while being prepared for occasional delays or retries can greatly enhance the smoothness of transferring your messages, contacts, photos, and other data between iPhones.