The footage shows the customer pressing his thumbs down on the iPhone, which already has a cracked screen, before smoke fills the shop.

“A customer came into the store with screen damaged iPhone 6+ for repair. [They] wanted to repair a broken screen and complained of the Apple brand battery not holding charge,” a spokesperson for the store said.

“We removed the customer’s Otterbox [smartphone case] and prepared to book the phone in.

“Then, the customer picked up [the] phone and applied a regular amount of pressure to the screen, the same as any normal person would do every day during regular use.

“The battery failed and exploded. Initial force of the explosion caused the screen to come off the phone.

“Draw your own conclusions, but imagine if this happened five minutes earlier when the guy was driving to the shop...”