Bluetooth keyboard for Android phone

[StewartR]

Back in the old days when I had a Blackberry, I had a fold-up Bluetooth keyboard which I could use with it. Now I have an Android phone (specifically, an HTC One M7 at present) and I discovered the keyboard in a desk drawer. But I can't get it to work with the phone. Any ideas? Should it be possible, in principle?

 

[stupar]

The concept is possible, the execution of getting it working should be fairly simple.
When you say work do you mean pairing or actually typing?

 

[Nikon_Nick]

As far as I know, all the newer versions of Bluetooth have been made backwards compatible, so in theory it SHOULD work...

 

[Peter69]

So long as the HTC has the correct protocol?
I paired and used keyboard with an S3. I think it is the same protocol that lets a selfie remote work