I bought the r4i gold in last month, and it works even when I updated to 1.4U. However, when I was walking home while listening to music, the card froze. Then when I restarted it, a message popped up, saying "AN ERROR HAS OCCURRED. PRESS AND HOLD THE POWER BUTTON TO TURN THE SYSTEM OFF. PLEASE REFER TO THE NINTENDO DSI OPERATIONS MANUAL FOR DETAILS Any ideas? I've been changing and updating the firmwares too. If all fails, I'm buying an Acekard2i. So it's been working for two months, and now it won't.