diff --git a/apps/documenteditor/mobile/locale/en.json b/apps/documenteditor/mobile/locale/en.json
index 9ca0208b9..7e4fee34d 100644
--- a/apps/documenteditor/mobile/locale/en.json
+++ b/apps/documenteditor/mobile/locale/en.json
@@ -94,7 +94,8 @@
     "errorUpdateVersionOnDisconnect": "Internet connection has been restored, and the file version has been changed.<br>Before you can continue working, you need to download the file or copy its content to make sure nothing is lost, and then reload this page.",
     "errorDefaultMessage": "Error code: %1",
     "criticalErrorExtText": "Press 'OK' to back to document list.",
-    "notcriticalErrorTitle": "Warning"
+    "notcriticalErrorTitle": "Warning",
+    "scriptLoadError": "The connection is too slow, some of the components could not be loaded. Please reload the page."
   },
   "LongActions": {
     "openTitleText": "Opening Document",
diff --git a/apps/documenteditor/mobile/src/controller/Error.jsx b/apps/documenteditor/mobile/src/controller/Error.jsx
index 6ae81ef0d..ff499f251 100644
--- a/apps/documenteditor/mobile/src/controller/Error.jsx
+++ b/apps/documenteditor/mobile/src/controller/Error.jsx
@@ -1,8 +1,7 @@
-import React, { useEffect, useState } from 'react';
+import React, { useEffect } from 'react';
 import { inject } from 'mobx-react';
 import { f7 } from 'framework7-react';
 import { useTranslation } from 'react-i18next';
-import LongActionsController from "./LongActions";
 
 const ErrorController = inject('storeAppOptions')(({storeAppOptions, LoadingDocument}) => {
     const {t} = useTranslation();
@@ -22,7 +21,7 @@ const ErrorController = inject('storeAppOptions')(({storeAppOptions, LoadingDocu
         if (id === Asc.c_oAscError.ID.LoadingScriptError) {
             f7.notification.create({
                 title: _t.criticalErrorTitle,
-                text: _t.criticalErrorTitle,
+                text: _t.scriptLoadError,
                 closeButton: true
             }).open();
             return;
@@ -183,7 +182,7 @@ const ErrorController = inject('storeAppOptions')(({storeAppOptions, LoadingDocu
             // report only critical errors
             Common.Gateway.reportError(id, config.msg);
 
-            config.title = this.criticalErrorTitle;
+            config.title = _t.criticalErrorTitle;
 
             if (storeAppOptions.canBackToFolder && !storeAppOptions.isDesktopApp) {
                 config.msg += '</br></br>' + _t.criticalErrorExtText;
diff --git a/apps/documenteditor/mobile/src/controller/LongActions.jsx b/apps/documenteditor/mobile/src/controller/LongActions.jsx
index 2c2e0f9fb..5365f7264 100644
--- a/apps/documenteditor/mobile/src/controller/LongActions.jsx
+++ b/apps/documenteditor/mobile/src/controller/LongActions.jsx
@@ -20,7 +20,7 @@ class LongActions extends Component {
     }
 
     closePreloader() {
-        if (this.loadMask.el) {
+        if (this.loadMask && this.loadMask.el) {
             f7.dialog.close(this.loadMask.el);
         }
     }
@@ -70,7 +70,7 @@ class LongActions extends Component {
         if (action) {
             this.setLongActionView(action)
         } else {
-            this.loadMask.el && this.loadMask.el.classList.contains('modal-in') && f7.dialog.close(this.loadMask.el);
+            this.loadMask && this.loadMask.el && this.loadMask.el.classList.contains('modal-in') && f7.dialog.close(this.loadMask.el);
         }
     }
 
diff --git a/apps/documenteditor/mobile/src/controller/Main.jsx b/apps/documenteditor/mobile/src/controller/Main.jsx
index 061f1eae9..45e56bb10 100644
--- a/apps/documenteditor/mobile/src/controller/Main.jsx
+++ b/apps/documenteditor/mobile/src/controller/Main.jsx
@@ -189,6 +189,9 @@ class MainController extends Component {
             };
 
             const onDocumentContentReady = () => {
+                if (this._isDocReady)
+                    return;
+
                 const appOptions = this.props.storeAppOptions;
                 const appSettings = this.props.storeApplicationSettings;
 
@@ -327,8 +330,8 @@ class MainController extends Component {
         Common.Utils.Metric.setCurrentMetric(value);
         this.api.asc_SetDocumentUnits((value === Common.Utils.Metric.c_MetricUnits.inch) ? Asc.c_oAscDocumentUnits.Inch : ((value===Common.Utils.Metric.c_MetricUnits.pt) ? Asc.c_oAscDocumentUnits.Point : Asc.c_oAscDocumentUnits.Millimeter));
 
-        //me.api.asc_registerCallback('asc_onDocumentModifiedChanged', _.bind(me.onDocumentModifiedChanged, me));
-        //me.api.asc_registerCallback('asc_onDocumentCanSaveChanged',  _.bind(me.onDocumentCanSaveChanged, me));
+        this.api.asc_registerCallback('asc_onDocumentModifiedChanged', this.onDocumentModifiedChanged.bind(this));
+        this.api.asc_registerCallback('asc_onDocumentCanSaveChanged',  this.onDocumentCanSaveChanged.bind(this));
 
         //if (me.stackLongActions.exist({id: ApplyEditRights, type: Asc.c_oAscAsyncActionType['BlockInteraction']})) {
         //    me.onLongActionEnd(Asc.c_oAscAsyncActionType['BlockInteraction'], ApplyEditRights);
@@ -342,6 +345,19 @@ class MainController extends Component {
         window.onunload = this.onUnload.bind(this);
     }
 
+    onDocumentModifiedChanged () {
+        const isModified = this.api.asc_isDocumentCanSave();
+        if (this._state.isDocModified !== isModified) {
+            this._isDocReady && Common.Gateway.setDocumentModified(this.api.isDocumentModified());
+        }
+
+        this.updateWindowTitle();
+    }
+
+    onDocumentCanSaveChanged (isCanSave) {
+        //
+    }
+
     onBeforeUnload () {
         LocalStorage.save();
 
@@ -485,6 +501,7 @@ class MainController extends Component {
         this.api.asc_registerCallback('asc_onServerVersion', this.onServerVersion.bind(this));
         this.api.asc_registerCallback('asc_onDocumentName', this.onDocumentName.bind(this));
         this.api.asc_registerCallback('asc_onPrintUrl', this.onPrintUrl.bind(this));
+        this.api.asc_registerCallback('asc_onPrint', this.onPrint.bind(this));
 
         EditorUIController.initThemeColors && EditorUIController.initThemeColors();
 
@@ -677,6 +694,14 @@ class MainController extends Component {
         }
     }
 
+    onPrint () {
+        if (!this.props.storeAppOptions.canPrint) return;
+
+        if (this.api)
+            this.api.asc_Print();
+        Common.component.Analytics.trackEvent('Print');
+    }
+
     onPrintUrl (url) {
         if (this.iframePrint) {
             this.iframePrint.parentNode.removeChild(this.iframePrint);
diff --git a/apps/documenteditor/mobile/src/controller/settings/Download.jsx b/apps/documenteditor/mobile/src/controller/settings/Download.jsx
index 5bf78d0ba..187b65c7b 100644
--- a/apps/documenteditor/mobile/src/controller/settings/Download.jsx
+++ b/apps/documenteditor/mobile/src/controller/settings/Download.jsx
@@ -55,6 +55,8 @@ class DownloadController extends Component {
 const DownloadWithTranslation = withTranslation()(DownloadController);
 
 const onAdvancedOptions = (type, advOptions, mode, formatOptions, _t, canRequestClose) => {
+    if ($$('.dlg-adv-options.modal-in').length > 0) return;
+
     const api = Common.EditorApi.get();
     if (type == Asc.c_oAscAdvancedOptionsID.TXT) {
         let picker;
@@ -97,7 +99,8 @@ const onAdvancedOptions = (type, advOptions, mode, formatOptions, _t, canRequest
                 '</div>' +
                 '<div id="txt-encoding"></div>' +
                 '</div>',
-            buttons: buttons
+            buttons: buttons,
+            cssClass: 'dlg-adv-options'
         }).open();
         dialog.on('opened', () => {
             picker = f7.picker.create({
@@ -122,7 +125,7 @@ const onAdvancedOptions = (type, advOptions, mode, formatOptions, _t, canRequest
                 const password = document.getElementById('modal-password').value;
                 api.asc_setAdvancedOptions(type, new Asc.asc_CDRMAdvancedOptions(password));
                 //if (!me._isDocReady) {
-                    //me.onLongActionBegin(Asc.c_oAscAsyncActionType['BlockInteraction'], LoadingDocument);
+                    //Common.Notifications.trigger('preloader:beginAction', Asc.c_oAscAsyncActionType['BlockInteraction'], this.LoadingDocument);
                 //}
             }
         }];
@@ -138,7 +141,8 @@ const onAdvancedOptions = (type, advOptions, mode, formatOptions, _t, canRequest
             text: _t.txtProtected,
             content:
                 '<div class="input-field"><input type="password" name="modal-password" placeholder="' + _t.advDRMPassword + '" id="modal-password"></div>',
-            buttons: buttons
+            buttons: buttons,
+            cssClass: 'dlg-adv-options'
         }).open();
     }
 };