diff --git a/firmware/applications/Makefile b/firmware/applications/Makefile
index 6d034d3..25a35c4 100644
--- a/firmware/applications/Makefile
+++ b/firmware/applications/Makefile
@@ -42,6 +42,22 @@ LIBFILE=lib$(LIBNAME).a
 
 all: $(LIBFILE)
 
+ifeq "$(APP)" "loadable"
+ifndef LAPP
+LAPP=blinktest
+endif
+LSRC=../loadable/$(LAPP).c
+LOBJ=loadable_$(LAPP).o
+
+.PHONY: $(LOBJ)
+
+$(LOBJ):
+	$(CC) $(CFLAGS) -o $@ $(LSRC)
+	$(RM) $(LIBFILE)
+
+OBJS += $(LOBJ)
+endif
+
 $(LIBFILE): $(OBJS) $(WRAPOBJ)
 	$(AR) rcs $@ $(OBJS) $(WRAPOBJ)
 	
diff --git a/firmware/applications/loadable.c b/firmware/applications/loadable.c
new file mode 100644
index 0000000..63ec6cb
--- /dev/null
+++ b/firmware/applications/loadable.c
@@ -0,0 +1,78 @@
+#include <sysinit.h>
+#include <string.h>
+
+#include "basic/basic.h"
+#include "lcd/lcd.h"
+#include "lcd/print.h"
+#include "usb/usbmsc.h"
+
+/**************************************************************************/
+void gotoISP(void) {
+    DoString(0,0,"Enter ISP!");
+    lcdDisplay();
+    ISPandReset();
+}
+
+void lcd_mirror(void) {
+    lcdToggleFlag(LCD_MIRRORX);
+};
+
+void lcd_invert(void) {
+    lcdToggleFlag(LCD_INVERTED);
+};
+
+void adc_check(void) {
+    int dx=0;
+    int dy=8;
+    // Print Voltage
+    dx=DoString(0,dy,"Voltage:");
+    while ((getInputRaw())==BTN_NONE){
+        DoInt(dx,dy,GetVoltage());
+        lcdDisplay();
+    };
+    dy+=8;
+    dx=DoString(0,dy,"Done.");
+};
+
+void msc_menu(void){
+    DoString(0,8,"MSC Enabled.");
+    lcdDisplay();
+    usbMSCInit();
+    while(!getInputRaw())delayms(10);
+    DoString(0,16,"MSC Disabled.");
+    usbMSCOff();
+};
+
+extern void (*ram)(void);
+
+const struct MENU_DEF menu_ISP =    {"Invoke ISP",  &gotoISP};
+const struct MENU_DEF menu_again = {"Run Loadable",   &ram};
+const struct MENU_DEF menu_nop =    {"---",   NULL};
+const struct MENU_DEF menu_msc =   {"MSC",   &msc_menu};
+const struct MENU_DEF menu_volt =   {"Akku",   &adc_check};
+const struct MENU_DEF menu_mirror = {"Mirror",   &lcd_mirror};
+const struct MENU_DEF menu_invert = {"Invert",   &lcd_invert};
+
+static menuentry menu[] = {
+    &menu_again,
+    &menu_ISP,
+    &menu_nop,
+    &menu_msc,
+    &menu_mirror,
+    &menu_invert,
+    &menu_volt,
+    NULL,
+};
+
+static const struct MENU mainmenu = {"Mainmenu", menu};
+
+
+/**************************************************************************/
+
+void main_loadable(void) {
+
+    lcdFill(0); // clear display buffer
+    lcdDisplay();
+    handleMenu(&mainmenu);
+    gotoISP();
+};
diff --git a/firmware/applications/mkwrapper b/firmware/applications/mkwrapper
index 50224fc..26830e1 100755
--- a/firmware/applications/mkwrapper
+++ b/firmware/applications/mkwrapper
@@ -1,6 +1,9 @@
 #!/bin/sh
 
 for a in $* ; do
+    case $a in 
+    loadable_*) continue;;
+    esac
 	base=${a%.o}
 	echo "void main_$base(void);" 
 	echo "void tick_$base(void);" 
@@ -10,6 +13,9 @@ echo
 echo "void wrapper(void){" 
 
 for a in $* ; do
+    case $a in 
+    loadable_*) continue;;
+    esac
 	base=${a%.o}
 	echo "main_$base();"
 done
@@ -19,6 +25,9 @@ echo "}"
 echo "void tick_wrapper(void){" 
 
 for a in $* ; do
+    case $a in 
+    loadable_*) continue;;
+    esac
 	base=${a%.o}
 	grep -q \ tick_$base ${base}.c && echo "tick_$base();"
 done
diff --git a/firmware/funk/openbeacon.c b/firmware/funk/openbeacon.c
index 4c1810b..2b919bf 100644
--- a/firmware/funk/openbeacon.c
+++ b/firmware/funk/openbeacon.c
@@ -6,7 +6,7 @@
 #include "filesystem/ff.h"
 
 //const uint32_t key[4] = {0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF};
-const uint32_t key[4] = { 0xB4595344,0xD3E119B6,0xA814D0EC,0xEFF5A24E };
+const uint32_t openbeaconkey[4] = { 0xB4595344,0xD3E119B6,0xA814D0EC,0xEFF5A24E };
 const uint8_t useencryption = 1;
 const uint8_t mac[5] = {1,2,3,2,1};
 
@@ -83,7 +83,7 @@ uint8_t openbeaconSendPacket(uint32_t id, uint32_t seq,
     buf[12]=0xff; // salt (0xffff always?)
     buf[13]=0xff;
 
-    return nrf_snd_pkt_crc_encr(16,buf,useencryption?key:NULL);
+    return nrf_snd_pkt_crc_encr(16,buf,useencryption?openbeaconkey:NULL);
 }
 
 uint8_t openbeaconSend(void)