Official os 5.0.0.1036 for the blackberry curve 8520 and blackberry bold 9000 adam zeis 7 years ago 13 some more officialy os goodness today as we have os 5.0.0.1036 for both the bold 9000 and curve 8520.. Latest os: 8520 5.0.0.1728/5.0.0.1067 (all languages) software for blackberry