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I was able to import the keys from an OpenDime device to my blockchain.info wallet, and it all worked out fine.  Here was the procedure I used:

1)  From your wallet's home page, click "Settings"
2)  Then click "Addresses"
3)  Under Imported addresses, click "+ Import Address"
4)  Paste in your address (Public Key)
5)  I then wanted my BTC elswhere, so I went to "Send" (Bitcoin)
6)  Then paste in your Private Key (LONG alphanumeric starting with a "5") at that prompt

I then transferred the BTC from there to other addresses.  Everything went well, but YMMV.


Edited for clarity....