Pffft! Calling it an H-bomb doesn't make it one. The thing only generated a 5.1 earthquake, exactly the size of the 2013 test of their garage bomb. If it was a thermonuclear design, it failed to light off the TN fuel.
its probably a tritium/deuterium boosted fission device. the us tested shit loads of them in the 50's. i think the biggest was like 300kt. i doubt they have the facilities to produce lithium deuteride.... and i seriously doubt they want to build a mike shot type cryogenic hydrogen bomb.