三星瑕疵屏幕引爆手机业“绿线门”，大厂售后按闹分配被吐槽

Core Viewpoint - The article discusses the recent consumer rights movement triggered by the "green line" issue in smartphone screens, affecting major brands like OPPO, Vivo, Samsung, Xiaomi, and Huawei, highlighting the dissatisfaction with after-sales service and warranty policies [3][4][14]. Group 1: Consumer Complaints and After-Sales Service - The "green line" issue is primarily a reliability problem with the screens, not due to user damage, leading to widespread consumer complaints [4][14]. - Different manufacturers have varying after-sales policies, with OPPO and Vivo offering around four years of warranty, while Xiaomi and Huawei typically provide one year [7]. - OPPO announced free screen replacements for devices with green line issues within four years of purchase, but consumers report difficulties in obtaining this service due to strict requirements like providing purchase invoices [7][8]. Group 2: Variability in Service Execution - There are inconsistencies in after-sales service across different locations, even within the same brand, leading to confusion and frustration among consumers [11][12]. - Some users have successfully obtained free replacements through persistent complaints, while others have faced high repair costs or outright denial of service [8][10]. - The article notes that even when brands have announced policies for free or discounted repairs, the execution often varies significantly, leading to a lack of transparency and fairness in the process [12][18]. Group 3: Technical Background of the Issue - The green line problem is a common defect in OLED screens, potentially caused by issues like chip detachment or circuit failure, and has been reported across various models from different manufacturers [14][16]. - The issue has been particularly prevalent in devices using specific batches of Samsung screens, which have been linked to the recent surge in complaints [16][17]. - The article emphasizes that the reliability of OLED screens can be affected by environmental conditions, with higher incidences reported during warmer months [17].