You want to offload all pictures and videos from the iPhone to the MacBook or iMac.
It is fastest to copy the pictures to the Macbook/iMac first. Then you can copy them to a memory stick (thumb drive) or similar.
Picturesdirectory (or a shared directory, but remember where, you'll need it later)
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capture, and double click on
Import To:and select the directory you just created
This may very well take some time but you see a dialog showing the progress.
Note that after the copy, the files may not be accessible from other computers. It turns out this is likely a permissions issue. To solve this, do some or all of the following, using Terminal on the iMac/MacBook.
But I just entered it on my iphone yesterday and had no problems accessing gmail; but today it asks me again. From an article in imobie here are their suggestions. Most relate to asking for Apple password, but article says “Keeps asking for password error”.