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....
Thanks. Without a QR code it's difficult to sweep. This worked for me