Haloalkanes and Haloarenes Part 1

The major product formed is 2 -iodo- 2,3 -dimethylbutane. Steps involved in the reaction are as follows:
Step 1 it is electrophilic addition reaction, π-bond of alkene attack H+ion of Hl and form more stable carbocation.
Step 2 Formation of more stable 3∘ carbocation take place by 1,2 shifting of Me group.
Step 3 Direct addition of I⊖ ion.