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This collection of Questions and Answers was created by our Tech Support Forum community. We found these to be the most commonly asked questions about Nintendo DSi, so we've compiled this list for you. Hope you find it helpful! 
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Question: My Nintendo DSi is seems to be frozen on the main menu screen, help?
Answer: Does the DSi have any video game cartridge inserted into it and if it does, did removing it allow you to get past the main menu? If the Nintendo DSi still remains frozen, try removing the battery, as that might reset it and correct what the problem is. If nothing seems to help, then give a call to Nintendo's 1-800-255-3700 (6 am ~ 7 pm Pacific, everyday) Customer Service number, or use their web forum to contact them, as unfortunately the DSi may need to be sent in for a repair.
Question: Is there any way to play guitar DS games on the Nintendo DSi? I just purchased the game and it only came with an adapter for the original Nintendo DS and Nintendo DS Lite.
Answer: No, there is no way; the games are only compatible with the Nintendo DS/DS Lite because of the Gameboy slot being required.
Question: My Nintendo DSi has a scratch on the outside casing, any ideas on how to get rid of it?
Answer: It may be impossible to remove the scratch from your Nintendo DSi system. I think that the only way to get rid of it is: To get any cases (as long as they are officially licensed by Nintendo , to call Nintendo at 1-800-255-3700 (everyday from hours of 6am -7pm, Pacific Time) or use their webform and ask them if they can fix it for you.
Question: Is it possible to play games from another country on a Nintendo DSi?
Answer: If it is a DS game then yes, but DSi specific software can only be played on the country that it was made in.
Question: Is it possible to view pictures that I took from my Nintendo DSi and display them on my PC?
Answer: Yes, if you use an SD Card and you have an SD Card Reader on your computer. Just take the pictures to the SD card, insert the SD card to your SD Card Reader, and you can view the pictures with your picture viewing software. You can also upload photos to Facebook with the latest Firmware Update.
Question: Can I copy photos from my computer to an SD card and view them/copy them to my Nintendo DSi?
Answer: You can't view pictures from other sources on the Nintendo DSi. You can only view pictures taken with the Nintendo DSi camera.
Question: My Nintendo DSi starts up and it says 0000fe00, what does it mean and how can I fix it?
Answer: Some users have been able to solve this problem by resetting the system. To do so, hold down every button while the system is on except the D-Pad and power buttons. Otherwise if the problem continues you'll likely need to send in your system for repair. To setup a repair, call Nintendo's Consumer Service Department at 1-800-255-3700 from the hours of 6am - 7pm, Pacific Time, 7 days a week.
Question: My Nintendo DSi camera is working properly but when I power the system on, no pictures are showing on the top screen. How do I fix this?
Answer: Power on the system and select the "Camera" icon from the Nintendo DSi menu. Select "Album" to open the photo album (on the System section where you saved your photos into your DSi). Select any picture you like to be put on the top screen on the DSi menu. Above the picture are four icons: the star, the clover, the heart and finally the Facebook icon. Select the star so that picture can be placed on the top screen of your Nintendo DSi menu. Your picture should now be displaying on top of your Nintendo DSi screen
Question: I reformatted my Nintendo DSi system and now all my preloaded DSiWare games are missing, how do I get them back?
Answer: All saved information will be lost when formatting the Nintendo DSi. However, the Nintendo DSi Shop account is separate. You should be able to go into the Nintendo DSi Shop and download the software previously installed, free of charge.
Question: Is it possible to copy over some of my downloaded Nintendo DSiWare games onto an SD card and play them on another Nintendo DSi system?
Answer: No, while you're able to copy games to an SD card, the games can only be played from the original Nintendo DSi they were downloaded from.
Question: My Nintendo DSi's stylus doesn't stay in the slot anymore, I examined it and the bump that holds it in is worn off. What should I do?
Answer: The only official way you could remedy the stylus coming out would be to purchase another stylus.
Question: When going into the Nintendo DSi photo album, my system tends to freeze up and I can’t make any selections, how do I fix this?
Answer: If your Nintendo DSi is in a tight carrying case, make sure that the L and R buttons are not being pressed while you attempt to go into the photo album, as this may be the cause of the problem.
Question: Is the Nintendo DS Lite microphone/headset compatible with the Nintendo DSi?
Answer: Yes, the microphone/headset plugs into the same connector on the Nintendo DSi as it did on the Nintendo DS Lite.
Question: While using the stylus on the touch screen of my Nintendo DSi system, every time I tap on something it seems to be a little off to where I’m actually taping, how do I fix this?
Answer: Under system settings, try recalibrating the touch screen for better accuracy.
Question: Is it possible to play DSiWare games directly from an SD card?
Answer: No, while you’re able to copy DSiware games to an SD card for storage, in order to play the games they must be copied back to the Nintendo DSi system memory.
Question: I purchased two Nintendo DSi systems and one of them appears to be missing a few options; web browser and Flipnote studio. How do I get these applications?
Answer: Some of the new Nintendo DSi systems have these applications pre-loaded on the system. For systems that don’t; you simply need to connect online to the DSi Shop application, click on DSi Ware>Free>Flipnote/Web Browser. You can download the applications free of charge!
Question: Some of the Nintendo DSiWare games say "multiplayer," do both Nintendo DSi's need to have the game downloaded to play together?
Answer: It depends on the game. Some will allow you to play off of one copy of the game, while others will require that each player have a copy. The games description will normally specify which multiplayer options are available.
Question: What is the highest amount of memory for SD cards the Nintendo DSi will read?
Answer: The SD card size limit is a 32GB SDHC card although the maximum amount of photos and songs are 3,000 each. Keep in mind; these limits are still in place even if you are way below the actual storage limit of your SD card.
Question: Is it ok to play my Nintendo DSi while it is plugged into the AC Adapter and charging? Will this have any effect on the battery?
Answer: Yes it is perfectly fine to play the Nintendo DSi while it is charging. This will have no ill effect on the battery, although it may just take longer to achieve a full battery charge while you play.
Question: Is it possible to play multiplayer games between a Nintendo DSi and a DS Lite? If so how?
Answer: Yes the Nintendo DSi is fully compatible with wireless multiplayer play with the DS Lite and original DS systems. Depending on the game, some games require each user to have a copy of the game while other games only require one copy. Check the games description for more details.
Question: How do you save photos taken with the Nintendo DSi camera directly to the systems memory?
Answer: After you take a photo, it will automatically be stored to the memory unless you tap the SD card option.
Question: Are the Nintendo DS Lite styli compatible with the Nintendo DSi system?
Answer: Yes, while the Nintendo DSi styli are a little longer, the DS Lite styli do fit comfortably into the Nintendo DSi’s stylus holder.
Question: When clicking on the Nintendo DSi browser a system memory is damaged message comes up and I am unable to continue, how do I fix this issue?
Answer: While you may be able to simply delete the internet channel and re-download the browser through the Nintendo DSi shop channel, if this does not resolve the issue, formatting the systems memory should fix the problem.
Question: When clicking on the Nintendo DSi shop on the menu it says, Nintendo DSi shop is currently not available in the country you have selected. I'm in the US, what should I do?
Answer: Double check in the system settings and make sure that the U.S. is actually selected and not some other country by mistake.
Question: How do you delete previously downloaded applications or DSiWare games?
Answer: Go into the data management in the system settings and select the game/application. Then press delete.
Question: Is it possible to listen to music stored on an SD Card while playing games on the Nintendo DSi?
Answer: No, this feature is not supported; you can only do 1 thing at a time.
Question: I’ve noticed that flash and java don't work with the Nintendo DSi, any way to fix that?
Answer: No. The Nintendo DSi is incapable of running flash. It is unknown if there will be support in the future.
Question: What is the best way to clean the screens on the Nintendo DSi system?
Answer: If the screens on your Nintendo DSi have visible smudges, fingerprints, or other foreign material on them, you can clean them by using a soft clean cloth such as a lens or eyeglass cleaning cloth. Slightly dampen the cloth with water ONLY and wipe off the screens to loosen any dirt or foreign material. Use a dry cloth, wipe the screens to dry them and finish the cleaning process. If needed, repeat the process.