Weather radar failed from DXB-DAR. The flight was diverted to Entebbe to pick up a spare it was going to need to operate DAR-DXB for night operations. Without the spare the planes was going to be AOG in DAR. There was no way of getting the spare from EBB-DAR to prevent a Night stop. Again Emirates came out on top to ensure the pax will get to Dubai without a night stop. Well done to them.