icanhandthemback
*Doodledog*, my son got an email of his final grades about a week before graduation and his transcripts were handed to him at Graduation which was a great celebration. He is now getting ready to start his London job and a new start beckons!
Yay! Congratulations 
crazyH I'm sorry to hear about your grandson, but all is not lost. He may want to resit (although that will cost money), and he may want to take some time to consider his options. It's good that he has you there for him, and that you are not making him feel worse than he already will.
A couple of things to bear in mind for when he's ready to talk about the future - he may well be able to transfer his credits to something more suitable to his interests. If he did that, he would be able to go straight onto the final year if he passed the first and second years, and the new course is similar to the old. There is usually a time limit on how long the credits remain transferable, so if he thinks he might want to go back and redo the final year it would be an idea to look into that now, so he knows how much time he has. I think it's usually five years, but that might vary - it is to do with the 'up to dateness' of the things he's learned, so it might vary across courses and universities.
Whatever he decides, assuming he passed the second year, he can get a Diploma of Higher Education (DipHE) and can use those letters after his name.* He may need to apply to get it, but can do so through the admin department, or just ring the University and ask the switchboard operator - it really is as simple as making a phone call. Also, it is usually possible to go to the Graduation ceremony and graduate with a DipHE, so he needn't miss out on that, either.
*A Certificate of Higher Education (CertHE) can be awarded after the first year of study, should anyone else be in this situation and find the information useful.