"An Alliance soldier knows the location of Prothean data drives that could help with the Crucible project. Recover them from Garvug in Valhallan Threshold and bring them to him at the Citadel docking bay."
This is from another quest. Target jamming is solved by scanning reaper target jamming technology in the Quarian/Geth homeworld. It has nothing to do with the Prothean Data Discs (which are for another quest). --Tautologico 04:40, March 9, 2012 (UTC)