Usually when there are problems with booting roms on the r4 it is because the kernel is out of date. Download the latest kernel for your r4 at http://www.r4ds.com/download-en.htm If the games still don't work, you might need to replace the arm7.bin file in the game. To do this, you will need to use a program called DSLazy. You can download it here. So to replace the arm7.bin, you will need a nds rom that works without the arm7.bin fix. Step One: Start DSLazy. Step Two: Browse for the file that works without the fix (I use Tetris DS) Step Three: Click Unpack. This will create a new folder called NDS_UNPACK Step Four: Move the arm7.bin inside the new folder somewhere safe. Close DSLazy Step Five: Complete steps 1-3 again. Step Six: Now open NDS_UNPACK that you just created with the game you want to fix and put the arm7.bin that you moved from step four into the NDS_UNPACK to replace the one already in there with the new one. Step Seven: Click NDS Packer in DSLazy. This will create a new version of the game you want to fix with a new arm7.bin Step Eight: You are done. Copy the game to your r4 and load it. The game should work.
If this didn't work, which shouldn't happen, try re-downloading your roms. If it STILL doesn't work, there might be a problem with your r4, and you might want to get it fixed or get a new one.
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First get the R4 OS installed onto the card (into the root dir), then make a sub directory called NDS. Put your .NDS files into that directory. you should now have a couple of sub dirs, NDS, Moonshl2, and r4iMenu or something similar. and some r4 OS files in the root directory.
R4 should boot, then pick the left icon (games) and load a game from the resulting list.
Yes you must extract the files. It won't play from a zip file. all files must end in .NDS for them to work. There are a lot of cool homebrew out there for these cards, have fun.
oh sorry didnt read your post right the first time, you have a new dsi? nintendo have been clever in not only makin the dsi region bound unlike the normal ds lite, meaning it will not play games from other regions where as the ds lite can but it does also made sure that the new dsi does not support any super card, be it the r4, dstt, n5. they are gits. the r4 ,dstt teams etc have promised to do cards that the dsi supports but dunno wen avalible yet and im guessin will cost more, sorry to let you in on this gimmick that nintendo have caused.hope this helps.
this is a problem with the pins inside could be dirty or dusty ether way you will need to get a cleaning fluid ie 100% alcohol cleaning fluid us a clean cotton bud inside the slot and use gently as not to damage pins, if the pins are heavy soiled you may need to get a fiberglass tipped pen wich is used to clean up poor contact areas on boards and other electrical circuits
okay listen the sd card has to be blown on put it back in to little hole thing in the thing on the r4 card.Then blow the ds cartridge and the r4 and put it back in and it should work perfectly and if it doesnt just do it one more time and keep on doing it.
I have had this problem with several R4 cards that i have mended for friends. Basicly what is happening is a file known as an ARM7 file is not being read properly.
There are a few ways around this problem.
You can download a NDS patcher/unpacker and unpack/repack the game that is giving you problems and replace the ARM7 file with one from a working game. (the unpacker will generally come with a working ARM7 file) i use one from GTA chinatown wars.
You can go to the torrent site and look for the game you are havong problems with and 9/10 you will find one saying 'R4 fix'
To format any drive just insert the memory, right click over your memory drive in My PC window, and there should be an option to Format this drive, formatting will erase all the card contents so make a backup in your computer first.
When you click on "format" a window will appear to chose FAT or FAT32 (try FAT32 first then if not working try FAT), dont have to do nothing on the size option, write a label for the drive if you want, not needed, let Quick Format clear, click on start button and you'll see a proccess bar, when it finish it tell you and you have a formatted drive.
Put the sistem files and one rom to test again in the memory, test it on your DS. Be sure you have the right files for your card, the www.R4ds.cn site only supports R4 cards, not R4 III, R4 SDHC or any fake non R4 hardware.