Hi guys, I'm new to the 3DS XL franchise and I'm not sure whether this error that I'm experiencing is either a software defect or a hardware one. So here it goes, I bought a 3DS XL 3 months ago which was pre-installed with Mario Kart 7. It was fine at first, no errors or any sort except for some rare occassions where an error pops up when playing Mario Kart which says: " An error has occurred, forcing the software to restart. Unsaved data may be lost " At first I ignored it because it occurred very rarely, sometimes once a week or none at all. But during the release of the bravely default demo, the error started to get worse. It became worse when playing the demo itself. It occurs between 5-30 minutes when playing the demo and at that time I was really curious to whats causing the error. I thought that it was just the demo that was causing the error itself and didn't bother doing anything at that point. Just last month I bought a retail copy of the game Bravely Default from the same store that I bought the unit from. It was fine during the first hour into the game and everything was going well until I was surprised by the same error that haunted me during my play of the demo. After experiencing it, I was so frustrated to what is causing this error to my unit. I thought it was due to the game cart being defective so I sent the game cart back to the store for testing and moved on. I bought another retail copy of a game but this time its a 2nd hand one which was sent to my by shipping which was Monster Hunter 3 Ultimate. I tested the cart the moment that I got it and as I opened it, I watched the opening scene yada yada, got into the main menu, checked the previous save files, and then BOOM! the screen froze and then followed by the SAME frigging error that haunted me in the previous game that I bought! I was thinking to myself that it might have been the cart because of the shipping, but until last week when I got to try my friend's MH3U cart into my unit that I have concluded that it IS my unit that has a problem. When I tried playing his copy of MH3U in my unit, just after selecting his character and roaming around the Moga Village for a few seconds, I got the same error again. I would like to apologize at this point for the wall of text above, its just that I'm really, really frustrated right now because I can't enjoy the games that I want to play. I have played 2 other games before the bravely default demo namely Pokemon Y and Fire Emblem Awakening both are retail copies and neither of them had this error even after clearing the game. I did some troubleshooting myself to determine whether what causes the error in my unit, and these are: - Reformatted my SD card - Played without the SD card - Turned off the WiFi - Even doing a System Memory Format And neither of them helped in resolving the error itself. I'm running out of options to fix this and thats why I'm taking the chance that you guys could help in this matter. I'm not using any gateway on my unit and haven't done any sort of hacking into it. I just want this error to be fixed because its been a while since I bought a handheld console, the last one was a GameBoy Advance haha. I just wish that someone could enlighten me regarding this kind of error in the unit and determine whether its a software or a hardware problem. Thanks gbatemp!