A routine update has revealed a technical fault with SIM cards at Telenor in Norway. Approximately 20,000 customers are affected by the issue, preventing normal service operation. Telenor identified the problem and is working to resolve it as quickly as possible. The company has not yet detailed the exact nature of the fault, but customers are experiencing connectivity problems. Affected users in Norway are advised to contact Telenor customer support for assistance. The disruption impacts customers across Norway, creating challenges for communication and data services. Telenor aims to restore full functionality for all affected SIM cards promptly.