I changed mine today at
Bondi store.
The guy was new but didn't event ask me to replicate the issue. I said that it starts OK but after a while it stops and then shows the case as A1234 (product no) and then stops/reinstates numerous times etc. I said I was using it with an X too. He just came with new case after asking the tech guys inside. New one works perfectly so far.

The guy was new but didn't event ask me to replicate the issue. I said that it starts OK but after a while it stops and then shows the case as A1234 (product no) and then stops/reinstates numerous times etc. I said I was using it with an X too. He just came with new case after asking the tech guys inside. New one works perfectly so far.