Yesterday my sister showed me how to do a oijui borad sorry for the misspelling
But today we done it again and the connection was with a friend of mine that parted with cancer 2 years ago.
Was this a bad thing to do.

Yes, it was. There is a reason that this type of activity is strictly forbidden by God as according to the Bible. It's because you're not really reaching out to the dead. The spirit you contacted was only mimicking your friend. I wouldn't recommend anyone to play around with those things.