Nikki Idd grabs an energy shield. The energy shield acted as a droid inhibitor, appearing as a compact, book-shaped rectangular device. In situations where a droid was experiencing an overload, this shield could be placed inside the droid's structure. This action would halt the overload and bring the droid back to its most fundamental operational state.
Should the shield be taken out of the droid before it underwent the necessary repairs, the overload would recommence without delay, continuing from the point at which it was interrupted.
On one occasion, Nikki Idd used an energy shield on R2-D2 to stop him from overloading right in front of her. C-3PO later took it out of R2-D2 to make a distraction for Vik Idd.