[ WP ] A time traveler goes to the 1920s and drops a modern day Smartphone . How does this change history ?

And the mission is over, Scott has gathered all the information he needed from his reckon mission of Palo Alto, California of the year 1921. 
 
 He turns on his time transporter. It is time to go back home and rest. 
 
 Scott gets home. Everything seems normal, except that all smart phones are slightly bent. He does n't know what happened. Why are all smartphones slightly bent and not completely flat, like when he left? 
 
 He reach to his pants, and he ca n't find his phone. It dawns on him. He left his Iphone 6 in 1921, and now, all smartphones bent alittle.
