Generally, you can replace it with a new one within fifteen days. However, at present, iPhones are basically replaced, and maintenance has not kept up. The prerequisite for replacement is quality problems. If the problem you find is a software problem, Or it may be affected by the adjustment function. They will not replace your phone, but can only help you adjust it and return it to normal.
Extended information:
Apple Inc. is an American company A high-tech company. It was founded by Steve Jobs, Steve Wozniak, Ron Wayne and others on April 1, 1976, and named Apple Computer Inc. It was renamed Apple on January 9, 2007 and is headquartered in Cupertino, California.
Apple went public on December 12, 1980. In 2012, it set a market capitalization record of US$623.5 billion. As of June 2014, Apple has become the world's largest company by market capitalization for three consecutive years. Apple ranked 9th in the 2016 Fortune 500 list. ?
On September 30, 2013, in the Omnicom Group's "Global Best Brands" report, Apple surpassed Coca-Cola to become the world's most valuable brand. In 2014, the Apple brand surpassed Google and became the world's most valuable brand.
On July 20, 2016, Apple ranked ninth on the Fortune Global 500 list. At 1 a.m. on September 8, 2016, the 2016 Apple Autumn New Product Launch was held at the Bill Graham Municipal Auditorium in San Francisco, USA.
In October, Apple ranked first among the world's 100 most valuable brands in 2016. At 8 o'clock in the morning on January 6, 2017, the "Red Friday" promotion was officially launched on Apple's official website. In an instant, a large number of users flocked to the official website to snap up purchases, and all participating headphones were sold out in just two minutes;
< p>In February, Brand Finance released the 2017 list of the world's top 500 brands, and Apple ranked second; on June 7, the 2017 Fortune 500 list of America's top brands was released, and Apple ranked third;? July On the 20th, it ranked 9th in the 2017 Fortune Global 500. ?On the evening of August 2, 2018, Apple’s intraday market value exceeded US$1 trillion for the first time, and its stock price hit a record high of US$203.57, with a current increase of more than 1%.
Reference: Baidu Encyclopedia-Apple