simplified config file comments, fixed settings not peristed, fixed F407 flash code

platform/lock_jumper.c

@@ -52,10 +52,13 @@ static void jumper_changed(void)
         dbg("LOCK jumper removed, enabling MSC!");
     } else {
         // Lock
-        dbg("LOCK jumper replaced, saving to Flash & disabling MSC!");
+        dbg("LOCK jumper replaced, disabling MSC!");
 
         if (SystemSettings.modified) {
+            dbg("Saving settings to Flash...");
             settings_save();
+        } else {
+            dbg("No changes to save.");
         }
     }
 

platform/plat_compat.h

@@ -180,7 +180,7 @@
     // size, determines position of the flash storage
 
     // we use the first 128kB sector. Unfortunately the whole sector must be erased before writing.
-    #define SETTINGS_FLASH_SECTOR 6
+    #define SETTINGS_FLASH_SECTOR FLASH_SECTOR_5
     #define SETTINGS_BLOCK_SIZE (1024*2)
     #define SETTINGS_FLASH_ADDR (0x08000000 + (16*4+64)*1024)