R4DS

R4 Ver 1.18 Kernel Download

R4 This is the latest Kernel`for your R4 and is updated on 24 June 2008.

R4 Ver 1.18 English Kernel (24-April-2008)

After english.zip is downloaded, please unzip it into a temporary
directory and copy the _system_ and moonshl folder and _DS_MENU.dat and _DS_MSHL.NDS to the root of your
microSD/TF card through the USB card reader.
You may place all your games in a Games folder on the root of your memory card.
Games must have a .nds extension.

Visit here for a step-by-step guide>>>

Nintendo ds, R4DS

NDS Change Games or Apps

Most DS users have encounter this problem which is they must switch the on and off button in order to play another game or appliction. We have explore a method which allow you to go back to the main menu without the need to OFF your NDS. It is very simple and all you need to do is to press the LEFT AND RIGHT BUTTON TOGETHER WITH THE A, B, X, Y. This will bring you back to the main menu and it works for DS  R4 Flash Card. Currently, this method does not work for DSTT card.