diff --git a/src/SettingsESP.h b/src/SettingsESP.h
index 70af60d..4057c95 100644
--- a/src/SettingsESP.h
+++ b/src/SettingsESP.h
@@ -88,10 +88,18 @@ class SettingsESP : public sets::SettingsBase {
             HTTPUpload& upload = server.upload();
             if (upload.status == UPLOAD_FILE_START) {
                 sets::beginOta();
+                if (_onStart)
+                  _onStart();
             } else if (upload.status == UPLOAD_FILE_WRITE) {
                 Update.write(upload.buf, upload.currentSize);
+                if (_onProgress) {
+                  size_t maxSketchSpace = sets::OtaGetMaxSize();
+                  _onProgress(upload.totalSize, maxSketchSpace);
+                }
             } else if (upload.status == UPLOAD_FILE_END) {
-                Update.end(true);
+                bool result = Update.end(true);
+                if (_onDone)
+                  _onDone(result);
             } });
 
         server.onNotFound([this]() {
@@ -193,4 +201,4 @@ class SettingsESP : public sets::SettingsBase {
         server.sendHeader(F("Access-Control-Allow-Methods"), F("*"));
 #endif
     }
-};
\ No newline at end of file
+};
diff --git a/src/core/SettingsBase.h b/src/core/SettingsBase.h
index 6ef189f..f3bab7c 100644
--- a/src/core/SettingsBase.h
+++ b/src/core/SettingsBase.h
@@ -26,11 +26,19 @@
 
 namespace sets {
 
+  typedef void (*onUpdateFWStart_t)();
+  typedef void (*onUpdateFWProgress_t)(size_t current, size_t final);
+  typedef void (*onUpdateFWDone_t)(bool success);
+
 class SettingsBase {
     static const uint16_t FOCUS_TOUT = 5000;
     static const uint16_t DB_WS_UPDATE_PRD = 300;
 
    protected:
+    sets::onUpdateFWStart_t _onStart = nullptr;
+    sets::onUpdateFWProgress_t _onProgress = nullptr;
+    sets::onUpdateFWDone_t _onDone = nullptr;
+
     typedef std::function<void(Builder& b)> BuildCallback;
     typedef std::function<void(Updater& upd)> UpdateCallback;
     typedef std::function<void(Text path)> FileCallback;
@@ -116,6 +124,18 @@ class SettingsBase {
     }
 
    public:
+     void onUpdateFWStart(sets::onUpdateFWStart_t fn) {
+       _onStart = fn;
+     };
+
+     void onUpdateFWProgress(sets::onUpdateFWProgress_t fn) {
+       _onProgress = fn;
+     };
+
+     void onUpdateFWDone(sets::onUpdateFWDone_t fn) {
+       _onDone = fn;
+     };
+
 #ifndef SETT_NO_DB
     SettingsBase(const String& title = "", GyverDB* db = nullptr) : _title(title), _db(db) {
 #else
@@ -188,6 +208,11 @@ class SettingsBase {
         _focus_cb = cb;
     }
 
+    // обработчик удаления файлов с устройства типа f(Text path)
+    void onFileRemove(FileCallback cb) {
+        _remove_cb = cb;
+    }
+
     // тикер, вызывать в родительском классе
     void tick() {
 #ifndef SETT_NO_DB
@@ -436,6 +461,9 @@ class SettingsBase {
                 if (granted) {
                     fs.remove(value.c_str());
                     _sendFs(true);
+                    if (_remove_cb) {
+                      _remove_cb(value);
+                    }
                     return;
                 }
                 break;
@@ -462,6 +490,7 @@ class SettingsBase {
     }
 
    private:
+    FileCallback _remove_cb = nullptr;
     BuildCallback _build_cb = nullptr;
     UpdateCallback _upd_cb = nullptr;
     FocusCallback _focus_cb = nullptr;
diff --git a/src/core/ota.cpp b/src/core/ota.cpp
index 8d33cd8..7dca966 100644
--- a/src/core/ota.cpp
+++ b/src/core/ota.cpp
@@ -8,26 +8,38 @@
 #endif
 
 namespace sets {
+size_t OtaGetMaxSize(bool ota_flash)
+{
+  size_t ota_size = 0;
+  if (ota_flash) {
+#ifdef ESP8266
+    ota_size = (size_t)((ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000);
+#else
+    ota_size = UPDATE_SIZE_UNKNOWN;
+#endif
+  } else {
+#ifdef ESP8266
+    close_all_fs();
+    ota_size = (size_t)&_FS_end - (size_t)&_FS_start;
+#else
+    ota_size = UPDATE_SIZE_UNKNOWN;
+#endif
+  }
+  return ota_size;
+}
 
 bool beginOta(bool ota_flash, bool async) {
-    size_t ota_size = 0;
+    size_t ota_size = OtaGetMaxSize(ota_flash);
     int ota_type = 0;
 
     if (ota_flash) {
         ota_type = U_FLASH;
-#ifdef ESP8266
-        ota_size = (size_t)((ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000);
-#else
-        ota_size = UPDATE_SIZE_UNKNOWN;
-#endif
     } else {
 #ifdef ESP8266
         ota_type = U_FS;
         close_all_fs();
-        ota_size = (size_t)&_FS_end - (size_t)&_FS_start;
 #else
         ota_type = U_SPIFFS;
-        ota_size = UPDATE_SIZE_UNKNOWN;
 #endif
     }
 
diff --git a/src/core/ota.h b/src/core/ota.h
index 516ab3f..de6407a 100644
--- a/src/core/ota.h
+++ b/src/core/ota.h
@@ -7,7 +7,7 @@
 #endif
 
 namespace sets {
-
+size_t OtaGetMaxSize(bool ota_flash = true);
 bool beginOta(bool ota_flash = true, bool async = false);
 
 }  // namespace sets
\ No newline at end of file