[. . . ] 2 Press hardly with a thin tip in the hole SET (on the bottom cabinet) until the click. [. . . ] Note: For a Euro conversion exceeding the display capacity of the calculator, the decimal part is truncated. If this product receives an electrostatic shock it may cease to function. To re-start the unit open the battery door (if applicable to this device) and replace it to do a reset, or alternatively remove batteries and put them back in. For warranty requirements or after sales service, please contact your local retailer with your proof of purchase. [. . . ] Our warranty covers all manufacturer defaults but does not cover deterioration due to non-respect of the Instruction Manual or bad handling of the product (like sun or water exposure or dismantling of the product). [. . . ]