I'm unable to pair my account with the most recent version of the blockchain app.  When scanning the first QR code (under account/devices) I get the error:
"invaliding pairing version code 0"

When scanning the second QR code I get the following error:
"invaliding pairing version code b"

I've installed QR Droid as some have suggested, to no avail.   (I'm not sure how to set the "default" QR program, so I deleted everything I could find related to QR programs sans QR Droid)

Very frustrating.  Would be nice to have some sort of manual entry backup option.  Or even be able to "Create a new account" in the app as it says you can do, but there is no captcha displayed ergo there is no way to sign up for a new account to send money too....

Please help!!