Already tried.. Still frozen on hyundai LogoThere is a reset button on the Head unit s in most Hyundai's. You have to look at your owners manual and it will tell you where it's located. Look to the lower portion of the facia on the right or left side near the adjust knobs. It it's not there, it will be on the back in the slot where the map card is located. Please refer to your owners manual as I'm not sure where it is for the i30N specifically.
Use a pen or stylus, press and hold it with the head unit on. this should reset the system and allow it to function as normal.
I already tried (and not working):First off don't worry, it's not bricked. If it was, you wouldn't get anything.
Pull the navigation SD card and turn the unit on again to see if it will function. Generally, when you do an update and there is an error in the upload, it won't allow the unit to boot up for protection.