It was empty..I just download the latest kernel WOOD R4 V1.56 and extract it to the root of 8gb sandisk sdhc card.
Should update the patch too? if yes, I should run the "R4iGold_3DS45_NDSi145_Patcha_NDSi.nds" file and not the "R4iGold_3DS45_NDSi145_Patcha_NDSL.nds" , correct?