[HELP] I can't find the best way to fix these problems!

I've download these roms from romulation.
- Grand Theft Auto: Chinatown Wars (fixed)
- The World Ends With You (fixed)
- Rune Factory 1I can't play these games cause of some bugs/errors.- Grand Theft Auto: Chinatown Wars (fixed)
After I choose the save file, my nds got freeze. I know that the save file is the only problem here.
How to solve: https://www.romulation.org/forum/index.php?topic=14970.0 really works! (Credit to Anandjones)- The World Ends With You (fixed)
My nds got freeze when the intro video playing. I can't figure out what the problem is.
How to solve: When the opening comes up, try opening and closing ur ds screen (repeatedly) (Credit to xmodesty)Im not sure about the resolution to the other one.- Rune Factory 1
Another freeze again but the music still playing.I've read all thread that contains the ways to fix these problems in this forum. But still I don't understand what they mean. They said that I have to update my nds, format my nds, or anything else that I can't really trust. Can anyone tell me the best and easiest way to solve these problems?Sorry for my bad english.I'm using R4.

Not update your nds, update your flash cart, see the common issues thread.

Update your firmware.As Seph suggest see Common Issue thread.

For GTA: Read https://www.romulation.org/forum/index.php?topic=14970.0The other two, backup and format your MicroSD. You also haven't stated which flashcart you're using.

For GTA read this guide : http://gbatemp.net/index.php?showtopic=94755&st=0&p=1265830&#entry1265830 or
https://www.romulation.org/forum/index.php?topic=1462.0For TWEWY : When the opening comes up, try opening and closing ur ds screen (repeatedly((this worked for me)))Im not sure about the resolution to the other one.

GTA needs an arm7 patch. The world ends with you worked with no problems for me and never played rune factory 1. By the way, what flash cart are you using?

Just because it works on yours, doesn't mean it will on his. Note; no statement of flashcart, or MicroSD etc. ;)

I'll take note of that for next time. Thanks

I'm using R4.What is flash cart? What is firmware? What is MicroSD?
I've just bought NDS and still don't know what they all are.How can I update my flash cart? Download something then replace the files? Will it make any error in my nds?Is there any way wihtout update/add/remove anything in my nds/flash cart/firmware/microSD?

Flashcart is your R4 cartridge.
MicroSD is the small memory card you are putting inside your R4.
Firmware is a set of files on that memory card which tells your R4 how to run.You cannot fix these games without updating/adding/removing/modifying stuff on your microSD.Firmware files can be found at www.linfoxdomain.com/nintendo/dsInformation on Common Issues dealing with Flashcarts and games can be found in the Common Issues thread linked to earlier.
https://www.romulation.org/forum/index.php?topic=1462.0

xmodesty · #5For GTA read this guide : http://gbatemp.net/index.php?showtopic=94755&st=0&p=1265830&#entry1265830 or
https://www.romulation.org/forum/index.php?topic=1462.0For TWEWY : When the opening comes up, try opening and closing ur ds screen (repeatedly((this worked for me)))Im not sure about the resolution to the other one.

The trick for TWEWY is work! Thanks!
But the GTA seems can't run yet...

Make sure to read https://www.romulation.org/forum/index.php?topic=14970.0 :)

The patched GTA ROM lost...

What?

Replying to #14

You know? "If you would prefer to download the already patched ROM, click here". No item in that link.BUT THANKS! I TRIED IT AND DID IT!
THANKS, NOW I CAN PLAY GTA!But, how about my Rune Factory?

Oh. Have you backed up and formatted your MicroSD?

How to backup?

Copy all your files somewhere (so you don't lose them).

Replying to #18

are you sure just backup it by copy them and paste somewhere? are the hidden files copied too..?
then how to format?

Replying to #19

There shouldn't be any hidden files, if there are just go to your folder options and check the "Show Hidden Files" option. Of course the files on your card wouldn't be hidden unless you yourself made them hidden, so I'm about 99% sure there are no hidden files on your SD Card.To format, just right click on the drive and choose "Format..."