The lawsuit against Apple, which has deliberately degraded the performance of the old iPhone, has also come out of the United States. Overseas securities companies have begun to lower the sales forecast of the latest phone, the iPhone X, at the same time. Apple is losing consumer confidence and a growing number of consumers are starting to follow suit.

Two Israeli iPhone users filed a lawsuit in Tel Aviv court saying "Apple has violated consumer protection laws" after a class action lawsuit against Apple began in the United States, according to sources including Israeli media JTA.

"If you knew that changing the battery would improve your iPhone's performance, you would not buy a new iPhone," he said. The number of lawsuits filed against Apple in the United States has increased to nine. Class action lawsuits continue, but Apple has not released any additional comments.

The quality debate also shifted to Apple's latest phone, the iPhone's 10th anniversary, 'iPhone X'. Despite the fact that it is the highest price ever, reaching a maximum of 163,000 won, it is because of the lack of innovation. It also points out that there is a problem with the basic quality, such as the power is turned off at sub-zero temperatures and vertical green lines appear on the screen of some products.

According to Bloomberg News, analysts at China's Guizhou Securities Co. forecasted that shipments of iPhone X will reach 35 million units in the first quarter of next year, 10 million units less than the previous forecast. New York-based researcher JL Warren Capital also predicted that the volume of iPhone X sales will fall from 30 million units in the fourth quarter to 25 million units in the first quarter of next year, based on orders from parts suppliers. "It is known that Apple has lowered its sales forecast from the current 50 million units to 30 million units in the first quarter of next year," according to a source in the local newspaper Economy Daily News in Taiwan. "Foxcon's China assembly firm Zhengzhou, The plant said it stopped hiring people. According to reports, Apple has lowered its forecast for next year.

Accordingly, Instinet, the US-based investment company of Nomura, Japan's largest financial group, lowered its rating on Apple from 'Buy' to 'Neutral'. "Apple executives may have to step down to avoid a lot of reparations or a situation where loyal customers around the world are turning away," Apple's analysis media Pattenley Apple said.

In fact, the iPhone 8 series and X released this year have the lowest percentage of sales of all of the latest iPhones in the total iPhone combined. According to consumer intelligence research partners' survey of market researchers, 39% of 8-series users in the United States and 30% of X users did not exceed 70%. In 2014, the iPhone 6 series reached 91%, compared with the 6-series in 2015 and the 7-series last year, compared with 70% in the first half.