Sima did only participate in the last year of the Uprising, in the battles on the Drina (1813). With the suppression of the revolt by the Ottomans, Sima fled Serbia and helped his brother Mateja in his diplomatic missions (1814–15). He returned to Serbia, immediately with the outbreak of the Second Serbian Uprising (1815). He became a "voivode" of the Valjevo nahija. He died in combat against the Ottomans at Dublje, during the on 26 July 1815, at the age of 22.