Seems that the IRS is informing you of the steps during the processing of your return. I would think that you would receive your refund soon if qualified. 

have you checked your refund status on the IRS website? what does it say?

https://www.irs.gov/refunds 

Code 971 is for IRS internal use only and could be referring to more than 100 different things which is why looking at the transcript can be confusing at best.