Latest Official OS 6.0.749 for Torch 9800 from T-Mobile Austria
Before proceeding, ensure you have the BlackBerry USB Drivers installed on your Windows PC. blackberry 9800 autoloader link
Official support for BlackBerry OS ended on January 4, 2022, meaning official servers are no longer hosted by BlackBerry. To restore a 9800 today, you must rely on community archives and reputable third-party repositories. Latest Official OS 6