diff --git a/source/fatfs/ffconf.h b/source/fatfs/ffconf.h
index 66e6829..bd82ae8 100644
--- a/source/fatfs/ffconf.h
+++ b/source/fatfs/ffconf.h
@@ -170,7 +170,7 @@
 /* Number of volumes (logical drives) to be used. (1-10) */
 
 
-#define FF_STR_VOLUME_ID	1
+#define FF_STR_VOLUME_ID	0
 #define FF_VOLUME_STRS		"sdmc"
 /* FF_STR_VOLUME_ID switches support for volume ID in arbitrary strings.
 /  When FF_STR_VOLUME_ID is set to 1 or 2, arbitrary strings can be used as drive
diff --git a/source/fsop.c b/source/fsop.c
index 189c3a7..d71bb2c 100644
--- a/source/fsop.c
+++ b/source/fsop.c
@@ -79,13 +79,26 @@ static UINT sha256hash_cb(const BYTE* data, UINT size) {
 
 static FRESULT hashfile(FIL* fp, FSIZE_t offset, UINT size, unsigned char out[SHA256_BLOCK_SIZE]) {
 	FRESULT fres;
-	UINT forwarded;
+	UINT left = size;
 
 	fres = f_lseek(fp, offset);
 	if (fres) return fres;
 
 	sha256_init(&sha256ctx);
+	/*
+	ok this thing seems really slow
+
 	fres = f_forward(fp, sha256hash_cb, size, &forwarded);
+	*/
+	while (left)
+	{
+		UINT btr = (left > sizeof(buffer)) ? sizeof(buffer) : left;
+		UINT read;
+		fres = f_read(fp, buffer, btr, &read);
+		if (fres || !read) break;
+		left -= sha256hash_cb(buffer, read);
+	}
+
 	sha256_final(&sha256ctx, out);
 
 	return fres;
diff --git a/source/mset9.c b/source/mset9.c
index c0755ab..c49611c 100644
--- a/source/mset9.c
+++ b/source/mset9.c
@@ -83,7 +83,7 @@ static bool isHaxID1(const char* name) {
 }
 
 int MSET9Start() {
-	char path[256] = "sdmc:/Nintendo 3DS";
+	char path[256] = "0:/Nintendo 3DS";
 	FRESULT fres = 0;
 	DIR dp = {};
 	FILINFO fl = {};
@@ -180,7 +180,7 @@ int MSET9Start() {
 		if ((fres = f_rename(backupID1name, mset9.ID[1])) != FR_OK) {
 			printf(pWarn "Failed to restore backed up ID1 ..? (%i)\n", fres);
 		}
-		f_chdir("sdmc:/");
+		f_chdir("0:/");
 	}
 
 	if (injectedConsoleVer >= 0) {
@@ -189,7 +189,7 @@ int MSET9Start() {
 		if ((fres = f_rmdir_r(curhaxID1)) != FR_OK) {
 			printf(pWarn "Failed to remove hax ID1 ..? (%i)\n", fres);
 		}
-		f_chdir("sdmc:/");
+		f_chdir("0:/");
 
 		puts(pGood "MSET9 has been removed!");
 		return 2;
@@ -221,13 +221,14 @@ bool MSET9SanityCheck(void) {
 	||	!CheckFile("/SafeB9S.bin", 0, false))
 	{
 		puts(pBad  "Error #08: One or more files are missing or malformed!");
-		puts(pInfo "Please re-extract the MSET9 zip file, overwriting any files when prompted.");
+		puts(pInfo "Please re-extract the MSET9 zip file, \n"
+			 pInfo "overwriting any files when prompted.");
 
 		return false;
 	}
 	puts(pGood "Extracted files look good!");
 
-	sprintf(path, "sdmc:/Nintendo 3DS/%.32s/%.32s/", mset9.ID[0], mset9.ID[1]);
+	sprintf(path, "0:/Nintendo 3DS/%.32s/%.32s/", mset9.ID[0], mset9.ID[1]);
 	FRESULT fres = f_chdir(path);
 	if (fres != FR_OK) {
 		printf("f_chdir failed? (%i)\n", fres);
@@ -301,20 +302,20 @@ bool MSET9SanityCheck(void) {
 	}
 	puts(pGood "Found Mii Maker extdata!");
 
-	f_chdir("sdmc:/");
+	f_chdir("0:/");
 	return true;
 }
 
 bool MSET9Injection(void) {
 	char path[256], path2[256];
 	FRESULT fres;
-	FIL fp;
+//	FIL fp;
 
 	if (!mset9.ready || !mset9.consoleVer) return false;
 
 	puts(pNote "Performing injection...");
 
-	sprintf(path, "sdmc:/Nintendo 3DS/%.32s/", mset9.ID[0]);
+	sprintf(path, "0:/Nintendo 3DS/%.32s/", mset9.ID[0]);
 	f_chdir(path);
 
 	// 1. Create hax ID1
@@ -382,16 +383,16 @@ bool MSET9Injection(void) {
 	// 4. Create trigger file (002F003A.txt)
 	puts(pInfo "Injecting trigger file...");
 	strcpy(strchr(path, '/'), "/extdata/002F003A.txt");
-	fres = f_open(&fp, path, FA_CREATE_NEW | FA_WRITE);
+	fres = f_dummy(path, false);
 	if (fres != FR_OK) {
-		printf(pBad "f_open failed! (%i)\n", fres);
+		printf(pBad "f_dummy failed! (%i)\n", fres);
 		return false;
 	}
-
+/*
 	UINT written;
 	fres = f_write(&fp, "arm9 \"security\" processor vs. text file in extdata:", 52, &written);
 	f_close(&fp);
-
+*/
 	// 5. Back up original ID1
 	puts(pInfo "Backing up original ID1...");
 	strcpy(path,  mset9.ID[1]);
@@ -404,6 +405,7 @@ bool MSET9Injection(void) {
 		return false;
 	}
 
+	f_chdir("0:/");
 	puts(pGood "MSET9 injected, have fun!");
 	return true;
 }
diff --git a/source/sd.c b/source/sd.c
index 38dfa25..a986839 100644
--- a/source/sd.c
+++ b/source/sd.c
@@ -45,7 +45,7 @@ bool SDMount(void) {
 	printf(pInfo "Mounting SD card ...\r");
 	// usleep(1000000);
 	sdmc->startup();
-	FRESULT fres = f_mount(&fs, "sdmc:/", true);
+	FRESULT fres = f_mount(&fs, "0:/", true);
 	if (fres == FR_OK) {
 		unsigned long freeSpace = (fs.free_clst * fs.csize);
 		unsigned long totalSpace = ((fs.n_fatent - 2) * fs.csize);
@@ -79,7 +79,7 @@ bool SDMount(void) {
 
 void SDUnmount(void) {
 	if (sdMounted) {
-		f_unmount("sdmc:/");
+		f_unmount("0:/");
 		// sdmc->shutdown();
 		puts(pInfo "Unmounted SD card.");
 		sdMounted = false;