To fix ND-5, you'll first need to locate several critical components. The game will provide general markers, but the exact locations might require some exploration or interaction with NPCs. One source indicates that a 'Flux Capacitor' can be found in a derelict freighter on Toshara, requiring a zero-gravity traversal puzzle. Another source mentions a 'Neural Processor' being held by a local crime boss on Kijimi, necessitating a negotiation or a stealthy retrieval.
Always check your datapad for clues and listen to conversations. Some components might be available for purchase from black market vendors, but at a steep price. Consider completing minor side objectives or bounties to earn credits if you choose this route. Be prepared for combat encounters when retrieving components from hostile territories.