diff --git a/Cart_Reader/Cart_Reader.ino b/Cart_Reader/Cart_Reader.ino
index ea96a5f..c47d431 100644
--- a/Cart_Reader/Cart_Reader.ino
+++ b/Cart_Reader/Cart_Reader.ino
@@ -2,8 +2,8 @@
                     Cartridge Reader for Arduino Mega2560
 
    Author:           sanni
-   Date:             17.12.2019
-   Version:          4.3
+   Date:             21.12.2019
+   Version:          4.4
 
    SD  lib:         https://github.com/greiman/SdFat
    LCD lib:         https://github.com/adafruit/Adafruit_SSD1306
@@ -43,7 +43,7 @@
 **********************************************************************************/
 #include <SdFat.h>
 
-char ver[5] = "4.3";
+char ver[5] = "4.4";
 
 /******************************************
    Options
diff --git a/Cart_Reader/GBA.ino b/Cart_Reader/GBA.ino
index e7d8866..370df60 100644
--- a/Cart_Reader/GBA.ino
+++ b/Cart_Reader/GBA.ino
@@ -2485,6 +2485,9 @@ void flashRepro_GBA() {
       else if ((romType == 0x89)) {
         println_Msg(F("Intel PC28F256M29"));
       }
+      else if ((romType == 0x20)) {
+        println_Msg(F("ST M29W128GH"));
+      }
       else {
         print_Msg(F("romType: 0x"));
         println_Msg(romType, HEX);
@@ -2547,7 +2550,7 @@ void flashRepro_GBA() {
         //else {
         println_Msg(F("Erasing..."));
         display_Update();
-        if ((romType == 0xC2) || (romType == 0x89)) {
+        if ((romType == 0xC2) || (romType == 0x89) || (romType == 0x20)) {
           //MX29GL128E
           //PC28F256M29 (0x89)
           sectorEraseMX29GL128E_GBA();
@@ -2573,7 +2576,7 @@ void flashRepro_GBA() {
         writeIntel4000_GBA();
       }
       else if (strcmp(flashid, "227E") == 0) {
-        if ((romType == 0xC2) || (romType == 0x89)) {
+        if ((romType == 0xC2) || (romType == 0x89) || (romType == 0x20)) {
           //MX29GL128E (0xC2)
           //PC28F256M29 (0x89)
           writeMX29GL128E_GBA();
diff --git a/README.md b/README.md
index e5b3a9a..76d6f3f 100644
--- a/README.md
+++ b/README.md
@@ -30,7 +30,7 @@ Be sure to check the guides in the [Wiki](https://github.com/sanni/cartreader/wi
 - Programs custom-made Game Boy (Color) flashcarts with AM29F016, AM29F032, MBM29F033 flashrom   
 - Programs EMS GB Smart 32M flash carts    
 - Reads Game Boy Advance roms and reads/writes most of the save games(4K Eeprom, 64K Eeprom, Sram/Fram, SST39VF512 512K flash + MX29L010 1M flash)  
-- Reflashes some Chinese GBA repros with i4000L0YBQ0, i4400L0ZDQ0, MX29GL128E, MSP55LV128 or PC28F256M29 flashroms    
+- Reflashes some Chinese GBA repros with i4000L0YBQ0, i4400L0ZDQ0, MX29GL128E, MSP55LV128, PC28F256M29 or M29W128GH flashroms    
 - Reads Sega Mega Drive roms and reads/writes save games(Sram/Fram, Eeprom)    
 - Reads Sega Master System roms (only default mapper and no SRAM supported so far)     
 - Reads PC engine/TG16 cartridges (compatible to Retrode 2 TG16 plugin adapter)