Users report that there is a green line on the screen of Samsung Galaxy Z Flip 4 phone, and it will not be replaced after sale.

CTOnews.com, July 17, recently, there have been a number of cases of screen failure in Samsung's Galaxy series of mobile phones. Almost all of the affected phones have Super AMOLED screens, and green or pink lines automatically appear on the screen. Samsung recently announced that if this problem occurs, Galaxy Note 20 and Galaxy S20 phones that are out of warranty can be repaired free of charge. However, CTOnews.com notes that these are not the only devices affected by screen problems, and some Galaxy Z Flip 4 users report experiencing a similar situation.

According to Sammobile, a Galaxy Z Flip 4 user from India said his phone had a screen malfunction less than five months after purchase, and a green line appeared in the upper left corner of the foldable screen phone.

The user claimed that the phone had not suffered any physical damage and that the green line appeared suddenly and looked like a hardware problem with Samsung. When the user contacted the service center, the after-sales staff told him that the screen was not covered by the warranty, but we all knew that the screen had a warranty. The service center refused to replace the damaged screen for free for the Galaxy Z Flip 4 user, and when users tried to contact Samsung via Twitter, they received no response from the company's social media team.

Samsung needs to communicate clearly with its after-sales service network about how to deal with screens with green / pink lines, and must extend its free maintenance policy to Galaxy S21, Galaxy S22 and Galaxy Z phones, the website said. If Samsung unreasonably refuses to replace the screens of the affected Galaxy phones, it is likely to damage its hard-earned reputation, especially among users who have been loyal to Samsung and spent a lot of money on high-end phones such as the Galaxy Z Flip 4 and the Galaxy S22 Ultra.