diff --git a/arm9/source/auxspi.cpp b/arm9/source/auxspi.cpp
index c60a96c..d5f2967 100644
--- a/arm9/source/auxspi.cpp
+++ b/arm9/source/auxspi.cpp
@@ -51,15 +51,24 @@ uint8 jedec_table(uint32 id)
 	// 1 MB
 	case 0x204014:
 		return 0x14;
+	// 2 MB (not sure if this exists, but I vaguely remember something...)
+	case 0x204015:
+		return 0x15;
 	// 8 MB (Band Brothers DX)
+	case 0x202017: // which one? (more work is required to unlock this save chip!)
 	case 0x204017:
 		return 0x17;
-	default:
-		return 0;
+	default: {
+		for (int i = 0; i < EXTRA_ARRAY_SIZE; i++) {
+			if (extra_id[i] == id)
+				return extra_size[i];
+		}
+		return 0; // unknown save type!
+	}
 	};
 }
 
-uint8 type2_size()
+uint8 type2_size(bool ir = false)
 {
 	static const uint32 offset0 = (8*1024-1);        //      8KB
 	static const uint32 offset1 = (2*8*1024-1);      //      16KB
@@ -67,12 +76,12 @@ uint8 type2_size()
 	u8 buf2;     //      +8k data        read -> read
 	u8 buf3;     //      +0k ~data          write
 	u8 buf4;     //      +8k data new    comp buf2
-	auxspi_read_data(offset0, &buf1, 1, 2);
-	auxspi_read_data(offset1, &buf2, 1, 2);
+	auxspi_read_data(offset0, &buf1, 1, 2, ir);
+	auxspi_read_data(offset1, &buf2, 1, 2, ir);
 	buf3=~buf1;
-	auxspi_write_data(offset0, &buf3, 1, 2);
-	auxspi_read_data (offset1, &buf4, 1, 2);
-	auxspi_write_data(offset0, &buf1, 1, 2);
+	auxspi_write_data(offset0, &buf3, 1, 2, ir);
+	auxspi_read_data (offset1, &buf4, 1, 2, ir);
+	auxspi_write_data(offset0, &buf1, 1, 2, ir);
 	if(buf4!=buf2)      //      +8k
 		return 0x0d;  //       8KB(64kbit)
 	else
@@ -89,6 +98,7 @@ uint8 auxspi_save_type(bool ir)
 	if ((sr & 0xfd) == 0xF0 && (jedec == 0x00ffffff)) return 1;
 	if ((sr & 0xfd) == 0x00 && (jedec == 0x00ffffff)) return 2;
 	if ((sr & 0xfd) == 0x00 && (jedec != 0x00ffffff)) return 3; // should also cover Pokemon HG/SS
+	// TODO: add support for Band Brothers DX (as soon as I know how)
 	
 	return 0;
 }
@@ -100,13 +110,13 @@ uint32 auxspi_save_size(bool ir)
 
 uint8 auxspi_save_size_log_2(bool ir)
 {
-	uint8 type = auxspi_save_type();
+	uint8 type = auxspi_save_type(ir); // TESTME: "ir" was missing, should fix recent issues
 	switch (type) {
 	case 1:
 		return 0x09; // 512 bytes
 		break;
 	case 2:
-		return type2_size();
+		return type2_size(ir);
 		break;
 	case 3:
 		return jedec_table(auxspi_save_jedec_id(ir));
@@ -127,6 +137,7 @@ uint32 auxspi_save_jedec_id(bool ir)
 	id |= auxspi_read() << 8;
 	id |= auxspi_read();
 	auxspi_close();
+	
 	return id;
 }
 
@@ -174,12 +185,10 @@ void auxspi_read_data(uint32 addr, uint8* buf, uint16 cnt, uint8 type, bool ir)
 
 void auxspi_write_data(uint32 addr, uint8 *buf, uint16 cnt, uint8 type, bool ir)
 {
-/*
 	if (type == 0)
 		type = auxspi_save_type();
 	if (type == 0)
 		return;
-		*/
 
 	uint32 addr_end = addr + cnt;
 	int i;
@@ -223,8 +232,6 @@ void auxspi_write_data(uint32 addr, uint8 *buf, uint16 cnt, uint8 type, bool ir)
         }
 		auxspi_close_lite();
 
-		// wait for programming to finish
-		//auxspi_wait_wip();
 		// wait programming to finish
 		if (ir)
 			auxspi_disable_infrared();
@@ -270,7 +277,6 @@ void auxspi_erase(bool ir)
 			auxspi_close_lite();
 			
 			// wait for programming to finish
-			//auxspi_wait_wip();
 			if (ir)
 				auxspi_disable_infrared();
 			auxspi_open(0);
diff --git a/arm9/source/auxspi_core.inc b/arm9/source/auxspi_core.inc
index ec2565e..81ec5af 100644
--- a/arm9/source/auxspi_core.inc
+++ b/arm9/source/auxspi_core.inc
@@ -36,7 +36,7 @@ inline void auxspi_wait_busy()
 
 inline void auxspi_open(uint8 device)
 {
-	REG_AUXSPICNT = 0xa040 | (device & 3);
+	REG_AUXSPICNT = 0xa040 | (device & 3) | 3;
 	auxspi_wait_busy();
 }
 
diff --git a/arm9/source/fileselect.cpp b/arm9/source/fileselect.cpp
index daadd4d..1fc31ee 100644
--- a/arm9/source/fileselect.cpp
+++ b/arm9/source/fileselect.cpp
@@ -178,10 +178,6 @@ void fileSelect(const char *startdir, char *out_dir, char *out_fname, netbuf *bu
 		ftpGetFileList("/", buf, num_files);
 	else
 		fileGetFileList(startdir, num_files);
-	if (num_files == 0) {
-		displayMessage("ERROR");
-		while(1);
-	}
 	filePrintFileList(startdir, first_file, sel_file, num_files, allow_cancel);
 		
 	while (!select) {
diff --git a/arm9/source/globals.cpp b/arm9/source/globals.cpp
index 4e2c166..cc8808c 100644
--- a/arm9/source/globals.cpp
+++ b/arm9/source/globals.cpp
@@ -45,3 +45,6 @@ u32 mode = 0;
 u32 ezflash = 0;
 
 int slot2 = 0;
+
+u32 extra_id[EXTRA_ARRAY_SIZE];
+u8 extra_size[EXTRA_ARRAY_SIZE];
diff --git a/arm9/source/globals.h b/arm9/source/globals.h
index 02196cc..85bcbd5 100644
--- a/arm9/source/globals.h
+++ b/arm9/source/globals.h
@@ -51,4 +51,10 @@ extern u32 ezflash;
 
 extern int slot2;
 
+// this should be enough for the forseeable future
+#define EXTRA_ARRAY_SIZE 16
+
+extern u32 extra_id[EXTRA_ARRAY_SIZE];
+extern u8 extra_size[EXTRA_ARRAY_SIZE];
+
 #endif // GLOBALS_H
\ No newline at end of file
diff --git a/arm9/source/hardware.cpp b/arm9/source/hardware.cpp
index c24413d..01505d9 100644
--- a/arm9/source/hardware.cpp
+++ b/arm9/source/hardware.cpp
@@ -57,7 +57,6 @@ static u32 pitch = 0x40000;
 
 
 // ---------------------------------------------------------------------
-// FIXME: after the slot 1 detection was factored out, swap_cart no longer has perfect accuracy!
 bool swap_cart()
 {
 	sNDSHeader nds;
@@ -74,12 +73,15 @@ bool swap_cart()
 				// don't try to dump a flash card
 				if (slot_1_type == 2)
 					continue;
+
 				sysSetBusOwners(true, true);
 				// this will break DLDI on the Cyclops Evolution, but we need it anyway.
 				cardReadHeader((u8*)&nds);
 				displayPrintUpper();
-				if (!nds.gameTitle[0])
+				if (!nds.gameTitle[0]) {
+					displayMessage2A(STR_HW_CARD_UNREADABLE, false);
 					continue;
+				}
 				
 				return true;
 			}
@@ -104,7 +106,19 @@ u32 get_slot1_type()
 	if (size1 > 0)
 		return 0;
 	
-	// No save size test returned a save chip, so it must be a flash card.
+	// No save size test returned a save chip, so it must be a flash card,
+	//  or a type 3 save with an unknown JEDEC ID. Unfortunately, due to
+	//  different behaviour of flash cards, we can't test for this case,
+	//  or the flash card may be recognised as "type 3 game".
+	/*
+	u32 id2 = auxspi_save_jedec_id(true);
+	u32 id1 = auxspi_save_jedec_id(false);
+	if (id2 != 0x00ffffff)
+		return 1;
+	if (id1 != 0x00ffffff)
+		return 0;
+		*/
+	
 	return 2;
 }
 
diff --git a/arm9/source/main.cpp b/arm9/source/main.cpp
index 42031d2..5eb312b 100644
--- a/arm9/source/main.cpp
+++ b/arm9/source/main.cpp
@@ -328,6 +328,21 @@ bool loadIniFile(char* path)
 	
 	ini_close(ini);
 	
+	// load additional Flash chip signatures (JEDEC IDs)
+	ini_locateHeading(ini, "new chips");
+	for (int i = 0; i < EXTRA_ARRAY_SIZE; i++) {
+		int tmp;
+		sprintf(txt, "%i-id", i);
+		ini_locateKey(ini, txt);
+		ini_readInt(ini, &tmp);
+		extra_id[i] = (u32)tmp;
+		//
+		sprintf(txt, "%i-size", i);
+		ini_locateKey(ini, txt);
+		ini_readInt(ini, &tmp);
+		extra_size[i] = tmp;
+	}
+	
 	// delete temp file (which is a remnant of inilib)
 	remove("/tmpfile");
 	
@@ -357,12 +372,12 @@ bool has_argv(int argc, char* argv[])
 	char *arg0 = argv[0];
 	// test for possible "/path", "fat*:/path" and "sd:/*".
 	if (*arg0 == 'f')
-		if (strncasecmp(argv[0], "fat:/", 5) || strncasecmp(argv[0], "fat1:/", 6)
-			|| strncasecmp(argv[0], "fat2:/", 6))
+		if (!strncasecmp(argv[0], "fat:/", 5) || !strncasecmp(argv[0], "fat1:/", 6)
+			|| !strncasecmp(argv[0], "fat2:/", 6))
 			return true;
 
 	if (*arg0 == 's')
-		if (strncasecmp(argv[0], "sd:/", 4))
+		if (!strncasecmp(argv[0], "sd:/", 4))
 			return true;
 	
 	if (*arg0 == '/')
@@ -381,34 +396,37 @@ int main(int argc, char* argv[])
 	// detect hardware
 	mode = hwDetect();
 	
-	// Init DLDI (file system driver), skip for mode == 4,5 which already calls this during
-	//  hardware initialisation
-	if (mode < 4) {
-		int fat = fatInitDefault();
-		if (fat == 0) {
-			displayMessage2A(STR_BOOT_DLDI_ERROR,true);
-			while (1);
-		}
+	// Init DLDI (file system driver)
+	int fat = fatInitDefault();
+	if (fat == 0) {
+		displayMessage2A(STR_BOOT_DLDI_ERROR,true);
+		while (1);
 	}
 	
 	// Load the ini file with the FTP settings and more options
+	for (int i = 0; i < EXTRA_ARRAY_SIZE; i++) {
+		extra_id[i] = 0xff000000;
+		extra_size[i] = 0;
+	}
 	if (has_argv(argc, argv))
 		loadIniFile(argv[0]);
 	else
 		loadIniFile(0);
 
+	// load strings
+	stringsLoadFile(0);
+
 	// prepare the global data buffer
 	data = (u8*)malloc(size_buf);
-	// This should not be required, but better safe than sorry. On the DS, it *might* be
+	// On my Cyclops, no 2MB buffer is available after loading strings! bad memory management?
+	//  Anyway, we can't do anything except for the following (which restricts the usefulness
+	//  of FTP safe mode)
 	//  possible that no continuous 2 MB are available.
-	if (data == NULL) {
+	while (data == NULL) {
 		size_buf >>= 1;
 		data = (u8*)malloc(size_buf);
 	}
 	
-	// load strings
-	stringsLoadFile(0);
-		
 	// okay, we got our HW identified; now branch to the corresponding main function/event handler
 	switch (mode) {
 		case 1:
diff --git a/arm9/source/strings.cpp b/arm9/source/strings.cpp
index 3fd5190..e75a2a3 100644
--- a/arm9/source/strings.cpp
+++ b/arm9/source/strings.cpp
@@ -78,6 +78,7 @@ bool stringsLoadFile(const char *fname)
 	ADD_STRING(STR_BOOT_DLDI_ERROR,"DLDI initialisation error!");
 	//
 	ADD_STRING(STR_HW_SWAP_CARD,"Please take out Slot 1\nflash card and insert a game\n\nPress A when done.");
+	ADD_STRING(STR_HW_CARD_UNREADABLE,"I can't read the game\ninserted in slot 1.\nPlease eject and retry.");
 	ADD_STRING(STR_HW_WRONG_GAME,"This game has a save chip\nthat is smaller than the\nsave you are going to\nwrite. Please insert a\ndifferent game.\n\nPress A when done.");
 	ADD_STRING(STR_HW_PLEASE_REBOOT,"Done! Please power off\n(and restart if you want\nto do more).");
 	//
diff --git a/savegame_manager.odt b/savegame_manager.odt
index 25d10c6..212d05d 100644
Binary files a/savegame_manager.odt and b/savegame_manager.odt differ