Solution:

1. Turn on the settings of iPhone-sound and touch

2. Turn on the button and it will return to normal.

Tesla, an American electric vehicle and energy company, has a market value of $21 billion, producing and selling electric vehicles, solar panels and energy storage equipment. Headquartered in Palo Alto, it was founded by martin eberhard and Mark Tapenning on July 1st, 23. The founder named the company "Tesla Motors" in memory of physicist nikola tesla. Tesla strives to provide every ordinary consumer with pure electric vehicles within their spending power; Tesla's vision is to "accelerate the global transition to sustainable energy".