diff --git a/Cart_Reader/GB.ino b/Cart_Reader/GB.ino
index 2fed636..8ca130c 100644
--- a/Cart_Reader/GB.ino
+++ b/Cart_Reader/GB.ino
@@ -1458,7 +1458,7 @@ void writeSRAM_GB() {
       display_Update();
 
     } else {
-      print_Error(F("File doesnt exist"));
+      print_Error(FS(FSTRING_FILE_DOESNT_EXIST));
     }
   } else {
     print_Error(F("Cart has no SRAM"));
@@ -1744,7 +1744,7 @@ void writeSRAMFLASH_MBC6_GB() {
     println_Msg(F("Save writing finished"));
     display_Update();
   } else {
-    print_Error(F("File doesnt exist"));
+    print_Error(FS(FSTRING_FILE_DOESNT_EXIST));
   }
 }
 
@@ -1818,7 +1818,7 @@ void writeEEPROM_MBC7_GB() {
 
   // open file on sd card
   if (!myFile.open(filePath, O_READ))
-    print_Error(F("File doesnt exist"));
+    print_Error(FS(FSTRING_FILE_DOESNT_EXIST));
 
   myFile.read(sdBuffer, lastByte);
   myFile.close();
diff --git a/Cart_Reader/GBA.ino b/Cart_Reader/GBA.ino
index 5702110..8745175 100644
--- a/Cart_Reader/GBA.ino
+++ b/Cart_Reader/GBA.ino
@@ -1012,7 +1012,7 @@ void writeSRAM_GBA(boolean browseFile, uint32_t sramSize, uint32_t pos) {
     display_Update();
 
   } else {
-    print_Error(F("File doesnt exist"));
+    print_Error(FS(FSTRING_FILE_DOESNT_EXIST));
   }
 }
 
@@ -1199,7 +1199,7 @@ void writeFRAM_GBA(boolean browseFile, unsigned long framSize) {
     display_Update();
 
   } else {
-    print_Error(F("File doesnt exist"));
+    print_Error(FS(FSTRING_FILE_DOESNT_EXIST));
   }
 }
 
@@ -1621,7 +1621,7 @@ void writeFLASH_GBA(boolean browseFile, uint32_t flashSize, uint32_t pos, boolea
 
   } else {
     println_Msg(F("Error"));
-    print_Error(F("File doesnt exist"));
+    print_Error(FS(FSTRING_FILE_DOESNT_EXIST));
   }
 }
 
@@ -1717,7 +1717,7 @@ void writeEeprom_GBA(word eepSize) {
     display_Update();
   } else {
     println_Msg(F("Error"));
-    print_Error(F("File doesnt exist"));
+    print_Error(FS(FSTRING_FILE_DOESNT_EXIST));
   }
 }
 
diff --git a/Cart_Reader/GPC.ino b/Cart_Reader/GPC.ino
index 35effbc..561345a 100644
--- a/Cart_Reader/GPC.ino
+++ b/Cart_Reader/GPC.ino
@@ -377,7 +377,7 @@ void writeRAM_GPC(void) {
     println_Msg(F("RAM writing finished"));
     display_Update();
   } else {
-    print_Error(F("File doesnt exist"));
+    print_Error(FS(FSTRING_FILE_DOESNT_EXIST));
   }
 }
 
diff --git a/Cart_Reader/OSCR.cpp b/Cart_Reader/OSCR.cpp
index 341dc46..9bdf395 100644
--- a/Cart_Reader/OSCR.cpp
+++ b/Cart_Reader/OSCR.cpp
@@ -62,6 +62,7 @@ constexpr char PROGMEM FSTRING_CURRENT_SETTINGS[] = "CURRENT SETTINGS";
 constexpr char PROGMEM FSTRING_OSCR[] = "OSCR";
 constexpr char PROGMEM FSTRING_MODULE_NOT_ENABLED[] = "Module is not enabled.";
 constexpr char PROGMEM FSTRING_DATABASE_FILE_NOT_FOUND[] = "Database file not found";
+constexpr char PROGMEM FSTRING_FILE_DOESNT_EXIST[] = "File doesn't exist";
 
 // Cart
 constexpr char PROGMEM FSTRING_READ_ROM[] = "Read ROM";
diff --git a/Cart_Reader/OSCR.h b/Cart_Reader/OSCR.h
index 7cb215d..9239acf 100644
--- a/Cart_Reader/OSCR.h
+++ b/Cart_Reader/OSCR.h
@@ -41,7 +41,8 @@ extern const char PROGMEM FSTRING_CURRENT_SETTINGS[];
 // Messages
 extern const char PROGMEM FSTRING_OSCR[];
 extern const char PROGMEM FSTRING_MODULE_NOT_ENABLED[];
-extern const char FSTRING_DATABASE_FILE_NOT_FOUND[];
+extern const char PROGMEM FSTRING_DATABASE_FILE_NOT_FOUND[];
+extern const char PROGMEM FSTRING_FILE_DOESNT_EXIST[];
 
 // Cart
 extern const char PROGMEM FSTRING_READ_ROM[];
diff --git a/Cart_Reader/PCE.ino b/Cart_Reader/PCE.ino
index 66060c2..a795c1d 100644
--- a/Cart_Reader/PCE.ino
+++ b/Cart_Reader/PCE.ino
@@ -725,7 +725,7 @@ void write_tennokoe_bank_PCE(int bank_index) {
     println_Msg(F("Finished"));
 
   } else {
-    print_Error(F("File doesn't exist"));
+    print_Error(FS(FSTRING_FILE_DOESNT_EXIST));
   }
 
   println_Msg(FS(FSTRING_EMPTY));
diff --git a/Cart_Reader/SNES.ino b/Cart_Reader/SNES.ino
index 152654a..a7c1b36 100644
--- a/Cart_Reader/SNES.ino
+++ b/Cart_Reader/SNES.ino
@@ -1648,7 +1648,7 @@ void writeSRAM(boolean browseFile) {
     display_Update();
 
   } else {
-    print_Error(F("File doesnt exist"));
+    print_Error(FS(FSTRING_FILE_DOESNT_EXIST));
   }
 }
 
diff --git a/Cart_Reader/SUPRACAN.ino b/Cart_Reader/SUPRACAN.ino
index a812e3e..571c301 100644
--- a/Cart_Reader/SUPRACAN.ino
+++ b/Cart_Reader/SUPRACAN.ino
@@ -232,7 +232,7 @@ static void writeSRAM_Acan() {
   display_Clear();
 
   if (!myFile.open(filePath, O_READ)) {
-    print_Error(F("File doesn't exist"));
+    print_Error(FS(FSTRING_FILE_DOESNT_EXIST));
     return;
   }
 
@@ -260,7 +260,7 @@ static void verifySRAM_Acan() {
   display_Update();
 
   if (!myFile.open(filePath, O_READ)) {
-    print_Error(F("File doesn't exist"));
+    print_Error(FS(FSTRING_FILE_DOESNT_EXIST));
     return;
   }
 
@@ -328,7 +328,7 @@ static void verifyUM6650() {
   display_Update();
 
   if (!myFile.open(filePath, O_READ)) {
-    print_Error(F("File doesn't exist"));
+    print_Error(FS(FSTRING_FILE_DOESNT_EXIST));
     return;
   }
 
@@ -365,7 +365,7 @@ static void writeUM6650() {
   display_Clear();
 
   if (!myFile.open(filePath, O_READ)) {
-    print_Error(F("File doesn't exist"));
+    print_Error(FS(FSTRING_FILE_DOESNT_EXIST));
     return;
   }
 
@@ -400,7 +400,7 @@ static void flashCart_Acan() {
   display_Clear();
 
   if (!myFile.open(filePath, O_READ)) {
-    print_Error(F("File doesn't exist"));
+    print_Error(FS(FSTRING_FILE_DOESNT_EXIST));
     return;
   }
 
diff --git a/Cart_Reader/SV.ino b/Cart_Reader/SV.ino
index cb253e3..95c6824 100644
--- a/Cart_Reader/SV.ino
+++ b/Cart_Reader/SV.ino
@@ -373,7 +373,7 @@ void writeSRAM_SV() {
     println_Msg(F("SRAM writing finished"));
     display_Update();
   } else {
-    print_Error(F("File doesnt exist"));
+    print_Error(FS(FSTRING_FILE_DOESNT_EXIST));
   }
 }
 
@@ -577,7 +577,7 @@ void writeROM_SV(void) {
     wait();
 
   } else {
-    print_Error(F("File doesn't exist"));
+    print_Error(FS(FSTRING_FILE_DOESNT_EXIST));
   }
 }
 
diff --git a/Cart_Reader/WS.ino b/Cart_Reader/WS.ino
index 99edbd4..8509e8b 100644
--- a/Cart_Reader/WS.ino
+++ b/Cart_Reader/WS.ino
@@ -654,7 +654,7 @@ static void verifySRAM_WS() {
       print_Error(did_not_verify_STR);
     }
   } else {
-    print_Error(F("File doesn't exist"));
+    print_Error(FS(FSTRING_FILE_DOESNT_EXIST));
   }
 }
 
@@ -700,7 +700,7 @@ static void writeSRAM_WS() {
     println_Msg(F("Writing finished"));
     display_Update();
   } else {
-    print_Error(F("File doesn't exist"));
+    print_Error(FS(FSTRING_FILE_DOESNT_EXIST));
   }
 }
 
@@ -808,7 +808,7 @@ static void verifyEEPROM_WS() {
       print_Error(did_not_verify_STR);
     }
   } else {
-    print_Error(F("File doesn't exist"));
+    print_Error(FS(FSTRING_FILE_DOESNT_EXIST));
   }
 }
 
@@ -859,7 +859,7 @@ static void writeEEPROM_WS() {
 
     print_STR(done_STR, 1);
   } else {
-    print_Error(F("File doesn't exist"));
+    print_Error(FS(FSTRING_FILE_DOESNT_EXIST));
   }
 }
 
@@ -948,7 +948,7 @@ static void writeWitchOS_WS() {
 
       print_STR(done_STR, 1);
     } else {
-      print_Error(F("File doesn't exist"));
+      print_Error(FS(FSTRING_FILE_DOESNT_EXIST));
     }
   }