diff --git a/esp32/esp32flash.cpp b/esp32/esp32flash.cpp
index 27b4c9e8e..783d14f75 100644
--- a/esp32/esp32flash.cpp
+++ b/esp32/esp32flash.cpp
@@ -114,7 +114,7 @@ bool Esp32Flash::disconnectEsp()
     return true;
 }
 
-bool Esp32Flash::flashFirmware(QByteArray data, size_t address)
+bool Esp32Flash::flashFirmware(QByteArray data, quint64 address)
 {
 #ifdef HAS_SERIALPORT
     if (!sPort->isOpen()) {
@@ -187,7 +187,7 @@ bool Esp32Flash::flashFirmware(QByteArray data, size_t address)
 #endif
 }
 
-bool Esp32Flash::eraseFlash(size_t size, size_t address)
+bool Esp32Flash::eraseFlash(quint64 size, quint64 address)
 {
 #ifdef HAS_SERIALPORT
     esp_loader_error_t err = esp_loader_flash_start(address, size, 1024);
diff --git a/esp32/esp32flash.h b/esp32/esp32flash.h
index 8354045ab..4f0242e28 100644
--- a/esp32/esp32flash.h
+++ b/esp32/esp32flash.h
@@ -35,14 +35,14 @@ class Esp32Flash : public QObject
     explicit Esp32Flash(QObject *parent = nullptr);
     ~Esp32Flash();
 
-    bool connectEsp(QString port);
-    bool disconnectEsp();
-    bool flashFirmware(QByteArray data, size_t address);
-    bool eraseFlash(size_t size, size_t address);
-    QString espPort();
-    bool isBuiltinUsb();
-    bool isEspConnected();
-    target_chip_t getTarget();
+    Q_INVOKABLE bool connectEsp(QString port);
+    Q_INVOKABLE bool disconnectEsp();
+    Q_INVOKABLE bool flashFirmware(QByteArray data, quint64 address);
+    Q_INVOKABLE bool eraseFlash(quint64 size, quint64 address);
+    Q_INVOKABLE QString espPort();
+    Q_INVOKABLE bool isBuiltinUsb();
+    Q_INVOKABLE bool isEspConnected();
+    Q_INVOKABLE target_chip_t getTarget();
 
 signals:
     void flashProgress(double prog);
diff --git a/main.cpp b/main.cpp
index 4373a957a..cfa7a0b43 100755
--- a/main.cpp
+++ b/main.cpp
@@ -235,6 +235,7 @@ int main(int argc, char *argv[])
     qmlRegisterType<Commands>("Vedder.vesc.commands", 1, 0, "Commands");
     qmlRegisterType<ConfigParams>("Vedder.vesc.configparams", 1, 0, "ConfigParams");
     qmlRegisterType<FwHelper>("Vedder.vesc.fwhelper", 1, 0, "FwHelper");
+    qmlRegisterType<Esp32Flash>("Vedder.vesc.esp32flash", 1, 0, "Esp32Flash");
     qmlRegisterType<TcpServerSimple>("Vedder.vesc.tcpserversimple", 1, 0, "TcpServerSimple");
     qmlRegisterType<UdpServerSimple>("Vedder.vesc.udpserversimple", 1, 0, "UdpServerSimple");
     qmlRegisterType<Vesc3dItem>("Vedder.vesc.vesc3ditem", 1, 0, "Vesc3dItem");
diff --git a/utility.cpp b/utility.cpp
index a5bb0647a..f9dd6fce0 100755
--- a/utility.cpp
+++ b/utility.cpp
@@ -2349,6 +2349,17 @@ QString Utility::md2html(QString md)
     return result;
 }
 
+QByteArray Utility::readAllFromFile(const QString &filePath)
+{
+    QFile file(filePath);
+    if (!file.open(QIODevice::ReadOnly)) {
+        return QByteArray();
+    }
+    QByteArray data = file.readAll();
+    file.close();
+    return data;
+}
+
 void Utility::setDarkMode(bool isDarkSetting)
 {
     isDark = isDarkSetting;
diff --git a/utility.h b/utility.h
index 7bc8e7268..2740310cd 100644
--- a/utility.h
+++ b/utility.h
@@ -146,6 +146,8 @@ class Utility : public QObject
 
     Q_INVOKABLE static QString md2html(QString md);
 
+    Q_INVOKABLE QByteArray readAllFromFile(const QString &filePath);
+
 signals:
 
 public slots: