It's not about where it's from. The physical interior of the models are differentiated based on what kind of phone you're using, and whether it's GSM or CDMA. Obviously you can't put a 4S panel onto a 4, and vise versa. The interior or the panel can have different insets based on the device since some parts may have been moved from one generation to another. As long as it's the same model, and the same band type, you can swap the parts. But make sure you know 100% what you're doing as replacing the screen/digitizer is one of the harder feats in iPhone/iPad repair