The Attribution gadget is the gadget in the footer that says "Powered by Blogger". If you have tried to remove this then you may noticed this gadget is Locked into your blog. To unlock it, follow this:
1- Log in to your Blogger account
2- Go to Dashboard > Template > Edit HTML
3- Click anywhere inside the code area and press Ctrl + F keys to open the Blogger search box
4- Type the following tag inside the search box then hit Enter to find it.
5- Just above the </head> add this code:
6- Click on the Save Template button to save the changes
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