Core Viewpoint - Qinghai Unicom experienced a significant communication network failure, leading to temporary disruptions in mobile signal for users in multiple areas, which has since been resolved [1][3][4] Group 1: Incident Details - On November 13, users in various regions of Qinghai reported sudden interruptions in Unicom's mobile signal, affecting services such as payments and public transport [3] - Qinghai Unicom acknowledged the issue, stating that the mobile signal was temporarily interrupted due to a centralized network failure, and they have completed repairs [1][4] Group 2: Customer Communication - The customer service response indicated that the network failure was due to a concentrated fault, and users were advised to restart their phones or toggle airplane mode to restore service [4] - Qinghai Unicom expressed sincere apologies to users for the inconvenience caused and thanked them for their patience and understanding during the repair process [1]