Hello, I am pleased to have the opportunity to assist you. My name is ***** ***** I can help you solve your problem.
You can connect your iphone 5c to your computer with the usb cable and transfer the files from your iphone to your computer; and then, connect your iphone 6se to your computer with the usb cable and transfer the files from your computer to your iphone.
I can tell you exactly how to do that. Please let me know if you need detailed instructions.
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