A mobile device, comprising: a camera configured for capturing a real-time video feed within the camera's field of view; a user interface system comprising a visual display; and a processor communicatively coupled to the camera and the user interface system, the processor being configured for: displaying the real-time video feed on the visual display; dynamically analyzing at least a frame of the real-time video feed to determine whether an image of a code symbol in the real-time video feed is completely decodable by the processor to obtain data of the code symbol, including verifying that a complete decoding of the image of the code symbol is obtained by error detection means; displaying on the visual display a positive indicator in association with and overlaying the code symbol in the real-time video feed when the processor determines that the code symbol in the real-time video feed is completely decodable by the processor, the positive indicator providing feedback to a user in real-time, indicating that the code symbol is completely decodable by the processor; and displaying on the visual display a negative indicator overlaying the code symbol in the real-time video feed when the processor determines that the code symbol in the real-time video feed is not completely decodable by the processor, the negative indicator providing feedback to the user in real-time, indicating that the code symbol is not completely decodable by the processor. a camera configured for capturing a real-time video feed within the camera's field of view; a user interface system comprising a visual display; and a processor communicatively coupled to the camera and the user interface system, the processor being configured for: displaying the real-time video feed on the visual display; dynamically analyzing at least a frame of the real-time video feed to determine whether an image of a code symbol in the real-time video feed is completely decodable by the processor to obtain data of the code symbol, including verifying that a complete decoding of the image of the code symbol is obtained by error detection means; displaying on the visual display a positive indicator in association with and overlaying the code symbol in the real-time video feed when the processor determines that the code symbol in the real-time video feed is completely decodable by the processor, the positive indicator providing feedback to a user in real-time, indicating that the code symbol is completely decodable by the processor; and displaying on the visual display a negative indicator overlaying the code symbol in the real-time video feed when the processor determines that the code symbol in the real-time video feed is not completely decodable by the processor, the negative indicator providing feedback to the user in real-time, indicating that the code symbol is not completely decodable by the processor. displaying the real-time video feed on the visual display; dynamically analyzing at least a frame of the real-time video feed to determine whether an image of a code symbol in the real-time video feed is completely decodable by the processor to obtain data of the code symbol, including verifying that a complete decoding of the image of the code symbol is obtained by error detection means; displaying on the visual display a positive indicator in association with and overlaying the code symbol in the real-time video feed when the processor determines that the code symbol in the real-time video feed is completely decodable by the processor, the positive indicator providing feedback to a user in real-time, indicating that the code symbol is completely decodable by the processor; and displaying on the visual display a negative indicator overlaying the code symbol in the real-time video feed when the processor determines that the code symbol in the real-time video feed is not completely decodable by the processor, the negative indicator providing feedback to the user in real-time, indicating that the code symbol is not completely decodable by the processor.