A Microsoft file hosting and synchronization service.
Hi Louise L,
Thank you for reaching out to us. I am Blessing, an independent advisor here and a Microsoft user like you.
Since you have installed OneDrive on your iPhone, sign into it using your Microsoft account and go to the Photos tab. You can now select the photos you would like to transfer to your iPhone or click the 3-dot menu icon and select all, next click the "Download" button.
Hope this helps!
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