My 3ds is at FW 4.5 and I have a gateway so I am not looking to updated. However, months ago, my 3ds downloaded the updated but has not installed it so every 24 hours I get the annoying update prompt. I am afraid that one day I will accidentally hit OK or someone else will and I will lose my ability to use the gateway. I heard that the gateway installer was supposed to erase the update but it didn't. Is there anything I can do to stop the prompt other than formatting the system memory as I have a downloaded game from the eshop that I do not want to lose.