you have to reset the ds system or in some cases, wait
Your game is probably just messed up. You might have to buy a new one.
throw it out and get a new one buddy! you're busted!
ah yes this hapend to my freind.... well sory dude you gota restart it downloads it on to your game file until you restart on a new one.
Cool it until one substance freezes out.
take it to a video game shop and ask them to fix it. or just get a new one =] <3
buy a new one
Usually, if the charger is damaged, there is no way to fix it. You will have to get a new one.
If your rank freezes and you don't get any credits in Modern Combat 4 then it could be due to a glitch in the game. One thing you can do is go to the settings, change the mode of movement to your preferred settings and resume the game. Most times it will fix the problem.
Well if its only with the game, then its obviously the cartridge. If its not just one game, its the system. Take a damp q-tip (no not sopping wet, just a little bit wet) and clean the inside. If this doesnt work, you will unfortunately replace the cartridge. By doing so, its not ensured that any safe data will be rescued. My source? It happened to me too T-T Mine freezes on the ds menu at the very beginning. But its my glitched up cartridge. -Mew
It is generally a good idea to keep your game updated at all times to ensure game fixes from the developers are applied to your game client. One can usually not fix a map glitch oneself, but one can always choose not to exploit it.
By buying a new one
This would be the round/point which decides the game for one pair, or another.