diff --git a/ui-ngx/src/app/modules/home/components/widget/lib/scada/scada-symbol-widget.component.ts b/ui-ngx/src/app/modules/home/components/widget/lib/scada/scada-symbol-widget.component.ts
index 92c5f08f3d..2f5136bf2a 100644
--- a/ui-ngx/src/app/modules/home/components/widget/lib/scada/scada-symbol-widget.component.ts
+++ b/ui-ngx/src/app/modules/home/components/widget/lib/scada/scada-symbol-widget.component.ts
@@ -131,8 +131,12 @@ export class ScadaSymbolWidgetComponent implements OnInit, AfterViewInit, OnDest
                      content: string) {
     const simulated = this.ctx.utilsService.widgetEditMode ||
       this.ctx.isPreview || (isDefinedAndNotNull(this.settings.simulated) ? this.settings.simulated : false);
-    this.scadaSymbolObject = new ScadaSymbolObject(rootElement, this.ctx, content,
-      this.settings.scadaSymbolObjectSettings, this, simulated);
+    if (content.startsWith('<parsererror')) {
+      rootElement.innerHTML = content;
+    } else {
+      this.scadaSymbolObject = new ScadaSymbolObject(rootElement, this.ctx, content,
+        this.settings.scadaSymbolObjectSettings, this, simulated);
+    }
   }
 
 }
diff --git a/ui-ngx/src/app/modules/home/components/widget/lib/scada/scada-symbol.models.ts b/ui-ngx/src/app/modules/home/components/widget/lib/scada/scada-symbol.models.ts
index 3742f24082..75adedc16d 100644
--- a/ui-ngx/src/app/modules/home/components/widget/lib/scada/scada-symbol.models.ts
+++ b/ui-ngx/src/app/modules/home/components/widget/lib/scada/scada-symbol.models.ts
@@ -191,9 +191,38 @@ export const emptyMetadata = (): ScadaSymbolMetadata => ({
   properties: []
 });
 
+const svgPartsRegex = /(<svg.*?>)(.*)<\/svg>/gms;
+
+const tbNamespaceRegex = /<svg.*(xmlns:tb="https:\/\/thingsboard.io\/svg").*>/gms;
+
+export const applyTbNamespaceToSvgContent = (svgContent: string): string => {
+  svgPartsRegex.lastIndex = 0;
+  let svgRootNode: string;
+  let innerSvg = '';
+  let match = svgPartsRegex.exec(svgContent);
+  if (match != null) {
+    if (match.length > 1) {
+      svgRootNode =  match[1];
+    }
+    if (match.length > 2) {
+      innerSvg = match[2];
+    }
+  }
+  if (!svgRootNode) {
+    throw new Error('Invalid SVG document.');
+  }
+  tbNamespaceRegex.lastIndex = 0;
+  match = tbNamespaceRegex.exec(svgRootNode);
+  if (match === null || !match.length) {
+    svgRootNode = svgRootNode.slice(0, -1) + ' xmlns:tb="https://thingsboard.io/svg">';
+    return `${svgRootNode}\n${innerSvg}\n</svg>`;
+  }
+  return svgContent;
+};
 
 export const parseScadaSymbolMetadataFromContent = (svgContent: string): ScadaSymbolMetadata => {
   try {
+    svgContent = applyTbNamespaceToSvgContent(svgContent);
     const svgDoc = new DOMParser().parseFromString(svgContent, 'image/svg+xml');
     return parseScadaSymbolMetadataFromDom(svgDoc);
   } catch (_e) {
@@ -216,13 +245,17 @@ const parseScadaSymbolMetadataFromDom = (svgDoc: Document): ScadaSymbolMetadata
 };
 
 export const updateScadaSymbolMetadataInContent = (svgContent: string, metadata: ScadaSymbolMetadata): string => {
+  svgContent = applyTbNamespaceToSvgContent(svgContent);
   const svgDoc = new DOMParser().parseFromString(svgContent, 'image/svg+xml');
+  const parsererror = svgDoc.getElementsByTagName('parsererror');
+  if (parsererror?.length) {
+    return parsererror[0].outerHTML;
+  }
   updateScadaSymbolMetadataInDom(svgDoc, metadata);
   return svgDoc.documentElement.outerHTML;
 };
 
 const updateScadaSymbolMetadataInDom = (svgDoc: Document, metadata: ScadaSymbolMetadata) => {
-  svgDoc.documentElement.setAttribute('xmlns:tb', 'https://thingsboard.io/svg');
   let metadataElement: Node;
   const elements = svgDoc.getElementsByTagName('tb:metadata');
   if (elements?.length) {
@@ -237,7 +270,6 @@ const updateScadaSymbolMetadataInDom = (svgDoc: Document, metadata: ScadaSymbolM
   metadataElement.appendChild(cdata);
 };
 
-const svgPartsRegex = /(<svg .*?>)(.*)<\/svg>/gms;
 const tbMetadataRegex = /<tb:metadata>.*<\/tb:metadata>/gs;
 
 export interface ScadaSymbolContentData {
@@ -389,6 +421,7 @@ export class ScadaSymbolObject {
     this.shapeResize$ = new ResizeObserver(() => {
       this.resize();
     });
+    this.svgContent = applyTbNamespaceToSvgContent(this.svgContent);
     const doc: XMLDocument = new DOMParser().parseFromString(this.svgContent, 'image/svg+xml');
     this.metadata = parseScadaSymbolMetadataFromDom(doc);
     const defaults = defaultScadaSymbolObjectSettings(this.metadata);
@@ -645,12 +678,22 @@ export class ScadaSymbolObject {
   }
 
   private renderState(): void {
-    this.metadata.stateRender(this.context, this.svgShape);
+    try {
+      this.metadata.stateRender(this.context, this.svgShape);
+    } catch (e) {
+      console.error(e);
+    }
     for (const tag of this.metadata.tags) {
-      const elements = this.context.tags[tag.tag];// this.svgShape.find(`[tb\\:tag="${tag.tag}"]`);
-      elements.forEach(element => {
-        tag.stateRender(this.context, element);
-      });
+      const elements = this.context.tags[tag.tag];
+      if (elements) {
+        elements.forEach(element => {
+          try {
+            tag.stateRender(this.context, element);
+          } catch (e) {
+            console.error(e);
+          }
+        });
+      }
     }
   }
 
diff --git a/ui-ngx/src/app/modules/home/components/widget/lib/settings/common/scada/scada-symbol-object-settings.component.scss b/ui-ngx/src/app/modules/home/components/widget/lib/settings/common/scada/scada-symbol-object-settings.component.scss
index 99b5c5df13..7f67f6ca37 100644
--- a/ui-ngx/src/app/modules/home/components/widget/lib/settings/common/scada/scada-symbol-object-settings.component.scss
+++ b/ui-ngx/src/app/modules/home/components/widget/lib/settings/common/scada/scada-symbol-object-settings.component.scss
@@ -13,8 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-.tb-scada-symbol-appearance-properties {
-  gap: 16px;
-  display: flex;
-  flex-direction: column;
+:host ::ng-deep {
+  .tb-scada-symbol-appearance-properties {
+    gap: 16px;
+    display: flex;
+    flex-direction: column;
+  }
 }
diff --git a/ui-ngx/src/app/modules/home/components/widget/lib/settings/common/scada/scada-symbol-object-settings.component.ts b/ui-ngx/src/app/modules/home/components/widget/lib/settings/common/scada/scada-symbol-object-settings.component.ts
index 5048c53213..80f2ef8a74 100644
--- a/ui-ngx/src/app/modules/home/components/widget/lib/settings/common/scada/scada-symbol-object-settings.component.ts
+++ b/ui-ngx/src/app/modules/home/components/widget/lib/settings/common/scada/scada-symbol-object-settings.component.ts
@@ -72,8 +72,7 @@ import { map } from 'rxjs/operators';
       useExisting: forwardRef(() => ScadaSymbolObjectSettingsComponent),
       multi: true
     }
-  ],
-  encapsulation: ViewEncapsulation.None
+  ]
 })
 export class ScadaSymbolObjectSettingsComponent implements OnInit, OnChanges, ControlValueAccessor, Validator {
 
diff --git a/ui-ngx/src/app/modules/home/pages/scada-symbol/scada-symbol-editor.component.html b/ui-ngx/src/app/modules/home/pages/scada-symbol/scada-symbol-editor.component.html
index e2e272cda3..20cc6fb40e 100644
--- a/ui-ngx/src/app/modules/home/pages/scada-symbol/scada-symbol-editor.component.html
+++ b/ui-ngx/src/app/modules/home/pages/scada-symbol/scada-symbol-editor.component.html
@@ -39,6 +39,7 @@
   <div class="tb-scada-symbol-editor-upload-buttons">
     <div class="tb-primary-fill">
       <button mat-icon-button
+              (click)="updateScadaSymbol.emit()"
               matTooltip="{{ 'scada.update-symbol' | translate }}"
               matTooltipPosition="above">
         <mat-icon>file_upload</mat-icon>
@@ -46,6 +47,7 @@
     </div>
     <div class="tb-primary-fill">
       <button mat-icon-button
+              (click)="downloadScadaSymbol.emit()"
               matTooltip="{{ 'scada.download-symbol' | translate }}"
               matTooltipPosition="above">
         <mat-icon>download</mat-icon>
diff --git a/ui-ngx/src/app/modules/home/pages/scada-symbol/scada-symbol-editor.component.ts b/ui-ngx/src/app/modules/home/pages/scada-symbol/scada-symbol-editor.component.ts
index 84cc868749..653aa8a9cb 100644
--- a/ui-ngx/src/app/modules/home/pages/scada-symbol/scada-symbol-editor.component.ts
+++ b/ui-ngx/src/app/modules/home/pages/scada-symbol/scada-symbol-editor.component.ts
@@ -17,11 +17,11 @@
 import {
   AfterViewInit, ChangeDetectorRef,
   Component,
-  ElementRef,
+  ElementRef, EventEmitter,
   Input,
   OnChanges,
   OnDestroy,
-  OnInit,
+  OnInit, Output,
   SimpleChanges,
   ViewChild,
   ViewContainerRef,
@@ -60,6 +60,12 @@ export class ScadaSymbolEditorComponent implements OnInit, OnDestroy, AfterViewI
   @Input()
   readonly: boolean;
 
+  @Output()
+  updateScadaSymbol = new EventEmitter();
+
+  @Output()
+  downloadScadaSymbol = new EventEmitter();
+
   scadaSymbolEditObject: ScadaSymbolEditObject;
 
   zoomInDisabled = false;
diff --git a/ui-ngx/src/app/modules/home/pages/scada-symbol/scada-symbol-editor.models.ts b/ui-ngx/src/app/modules/home/pages/scada-symbol/scada-symbol-editor.models.ts
index c60cade6ad..df5d6683e5 100644
--- a/ui-ngx/src/app/modules/home/pages/scada-symbol/scada-symbol-editor.models.ts
+++ b/ui-ngx/src/app/modules/home/pages/scada-symbol/scada-symbol-editor.models.ts
@@ -56,7 +56,7 @@ export interface ScadaSymbolEditObjectCallbacks {
   onZoom?: () => void;
 }
 
-const minSymbolZoom = 1;
+const minSymbolZoom = 0.75;
 const maxSymbolZoom = 4;
 
 export class ScadaSymbolEditObject {
@@ -150,7 +150,7 @@ export class ScadaSymbolEditObject {
       runner
       .zoom(level)
       .during(() => {
-        const box = this.restrictToMargins(this.svgShape.viewbox(), 0);
+        const box = this.restrictToMargins(this.svgShape.viewbox());
         this.svgShape.viewbox(box);
       })
       .after(() => {
@@ -168,7 +168,7 @@ export class ScadaSymbolEditObject {
   }
 
   private doSetup() {
-    this.setupZoomPan(0);
+    this.setupZoomPan();
     (window as any).SVG = svgjs;
     forkJoin([
       from(import('tooltipster')),
@@ -178,33 +178,37 @@ export class ScadaSymbolEditObject {
     });
   }
 
-  private setupZoomPan(margin: number) {
+  private setupZoomPan() {
+    this.svgShape.panZoom({
+      zoomMin: minSymbolZoom,
+      zoomMax: maxSymbolZoom,
+      zoomFactor: this.zoomFactor
+    });
     this.svgShape.on('zoom', (e) => {
       const {
         detail: { level, focus }
       } = e as any;
       this.svgShape.zoom(level, focus);
-      this.postZoom(this.callbacks.onZoom, e, margin);
+      this.postZoom(this.callbacks.onZoom, e);
     });
     this.svgShape.on('panning', (e) => {
       const box = (e as any).detail.box;
-      this.svgShape.viewbox(this.restrictToMargins(box, margin));
+      this.svgShape.viewbox(this.restrictToMargins(box));
       e.preventDefault();
     });
     this.svgShape.on('panStart', (_e) => {
-      if (this.svgShape.zoom() > minSymbolZoom) {
-        this.hideTooltips();
-        this.svgShape.node.style.cursor = 'grab';
-      }
+      this.hideTooltips();
+      this.svgShape.node.style.cursor = 'grab';
     });
     this.svgShape.on('panEnd', (_e) => {
       this.restoreTooltips();
       this.svgShape.node.style.cursor = 'default';
     });
+    this.svgShape.zoom(minSymbolZoom);
   }
 
-  private postZoom(callback?: () => void, e?: any, margin = 0) {
-    const box = this.restrictToMargins(this.svgShape.viewbox(), margin);
+  private postZoom(callback?: () => void, e?: any) {
+    const box = this.restrictToMargins(this.svgShape.viewbox());
     this.svgShape.viewbox(box);
     setTimeout(() => {
       this.updateTooltipPositions();
@@ -215,16 +219,18 @@ export class ScadaSymbolEditObject {
     }
   }
 
-  private restrictToMargins(box: Box, margin: number): Box {
-    if (box.x < -margin) {
-      box.x = -margin;
-    } else if ((box.x + box.width) > (this.box.width + margin)) {
-      box.x = this.box.width + margin - box.width;
+  private restrictToMargins(box: Box): Box {
+    const marginX = Math.max(box.width - this.box.width, 0);
+    const marginY = Math.max(box.height - this.box.height, 0);
+    if (box.x < -marginX) {
+      box.x = -marginX;
+    } else if ((box.x + box.width) > (this.box.width + marginX)) {
+      box.x = this.box.width + marginX - box.width;
     }
-    if (box.y < -margin) {
-      box.y = -margin;
-    } else if ((box.y + box.height) > (this.box.height + margin)) {
-      box.y = this.box.height + margin - box.height;
+    if (box.y < -marginY) {
+      box.y = -marginY;
+    } else if ((box.y + box.height) > (this.box.height + marginY)) {
+      box.y = this.box.height + marginY - box.height;
     }
     return box;
   }
@@ -324,7 +330,6 @@ export class ScadaSymbolEditObject {
           this.scale = scale;
           this.svgShape.node.style.transform = `scale(${this.scale})`;
           this.updateHoverFilterStyle();
-          this.updateZoomOptions();
           this.updateTooltipPositions();
         }
         if (this.performSetup) {
@@ -352,15 +357,6 @@ export class ScadaSymbolEditObject {
       );
   }
 
-  private updateZoomOptions() {
- //   this.zoomFactor = 2 / this.scale;
-    this.svgShape.panZoom({
-      zoomMin: minSymbolZoom,
-      zoomMax: maxSymbolZoom,
-      zoomFactor: this.zoomFactor
-    });
-  }
-
   private updateTooltipPositions() {
     for (const e of this.elements) {
       e.updateTooltipPosition();
diff --git a/ui-ngx/src/app/modules/home/pages/scada-symbol/scada-symbol.component.html b/ui-ngx/src/app/modules/home/pages/scada-symbol/scada-symbol.component.html
index 56572c6e4c..e487201440 100644
--- a/ui-ngx/src/app/modules/home/pages/scada-symbol/scada-symbol.component.html
+++ b/ui-ngx/src/app/modules/home/pages/scada-symbol/scada-symbol.component.html
@@ -114,7 +114,9 @@
           <tb-scada-symbol-editor *ngIf="!previewMode" #symbolEditor
                                   [readonly]="readonly"
                                   [data]="symbolEditorData"
-                                  [editObjectCallbacks]="editObjectCallbacks"></tb-scada-symbol-editor>
+                                  [editObjectCallbacks]="editObjectCallbacks"
+                                  (updateScadaSymbol)="updateScadaSymbol()"
+                                  (downloadScadaSymbol)="downloadScadaSymbol()"></tb-scada-symbol-editor>
           <tb-dashboard *ngIf="previewMode"
                         class="tb-absolute-fill"
                         [aliasController]="aliasController"
diff --git a/ui-ngx/src/app/modules/home/pages/scada-symbol/scada-symbol.component.ts b/ui-ngx/src/app/modules/home/pages/scada-symbol/scada-symbol.component.ts
index dc5b8cb0bf..5db507c7f3 100644
--- a/ui-ngx/src/app/modules/home/pages/scada-symbol/scada-symbol.component.ts
+++ b/ui-ngx/src/app/modules/home/pages/scada-symbol/scada-symbol.component.ts
@@ -66,6 +66,11 @@ import {
 import { getCurrentAuthUser } from '@core/auth/auth.selectors';
 import { Authority } from '@shared/models/authority.enum';
 import { NULL_UUID } from '@shared/models/id/has-uuid';
+import {
+  UploadImageDialogComponent,
+  UploadImageDialogData, UploadImageDialogResult
+} from '@shared/components/image/upload-image-dialog.component';
+import { MatDialog } from '@angular/material/dialog';
 
 @Component({
   selector: 'tb-scada-symbol',
@@ -143,7 +148,8 @@ export class ScadaSymbolComponent extends PageComponent
               private entityService: EntityService,
               private utils: UtilsService,
               private translate: TranslateService,
-              private imageService: ImageService) {
+              private imageService: ImageService,
+              private dialog: MatDialog) {
     super(store);
   }
 
@@ -317,6 +323,49 @@ export class ScadaSymbolComponent extends PageComponent
     this.symbolEditorDirty = dirty;
   }
 
+  updateScadaSymbol() {
+    this.dialog.open<UploadImageDialogComponent, UploadImageDialogData,
+      UploadImageDialogResult>(UploadImageDialogComponent, {
+      disableClose: true,
+      panelClass: ['tb-dialog', 'tb-fullscreen-dialog'],
+      data: {
+        imageSubType: this.symbolData.imageResource.resourceSubType,
+        image: this.symbolData.imageResource
+      }
+    }).afterClosed().subscribe((result) => {
+      if (result?.scadaSymbolContent) {
+        this.symbolData.scadaSymbolContent = result.scadaSymbolContent;
+        this.symbolEditorData = {
+          scadaSymbolContent: this.symbolData.scadaSymbolContent
+        };
+        this.symbolEditorDirty = true;
+      }
+    });
+  }
+
+  downloadScadaSymbol() {
+    let metadata: ScadaSymbolMetadata;
+    if (this.scadaSymbolFormGroup.valid) {
+      metadata = this.scadaSymbolFormGroup.get('metadata').value;
+    } else {
+      metadata = parseScadaSymbolMetadataFromContent(this.origSymbolData.scadaSymbolContent);
+    }
+    const linkElement = document.createElement('a');
+    const scadaSymbolContent = this.prepareScadaSymbolContent(metadata);
+    const blob = new Blob([scadaSymbolContent], { type: this.symbolData.imageResource.descriptor.mediaType });
+    const url = URL.createObjectURL(blob);
+    linkElement.setAttribute('href', url);
+    linkElement.setAttribute('download', this.symbolData.imageResource.fileName);
+    const clickEvent = new MouseEvent('click',
+      {
+        view: window,
+        bubbles: true,
+        cancelable: false
+      }
+    );
+    linkElement.dispatchEvent(clickEvent);
+  }
+
   private updatePreviewWidgetSettings() {
     this.previewWidget = deepClone(this.previewWidget);
     this.previewWidget.config.settings.scadaSymbolObjectSettings = this.previewScadaSymbolObjectSettings;
diff --git a/ui-ngx/src/app/shared/components/image/image-dialog.component.ts b/ui-ngx/src/app/shared/components/image/image-dialog.component.ts
index fd2b941382..5d3f14612a 100644
--- a/ui-ngx/src/app/shared/components/image/image-dialog.component.ts
+++ b/ui-ngx/src/app/shared/components/image/image-dialog.component.ts
@@ -25,7 +25,7 @@ import { ImageService } from '@core/http/image.service';
 import { ImageResource, ImageResourceInfo, imageResourceType } from '@shared/models/resource.models';
 import {
   UploadImageDialogComponent,
-  UploadImageDialogData
+  UploadImageDialogData, UploadImageDialogResult
 } from '@shared/components/image/upload-image-dialog.component';
 import { UrlHolder } from '@shared/pipe/image.pipe';
 import { ImportExportService } from '@shared/import-export/import-export.service';
@@ -142,7 +142,7 @@ export class ImageDialogComponent extends
       $event.stopPropagation();
     }
     this.dialog.open<UploadImageDialogComponent, UploadImageDialogData,
-      ImageResource>(UploadImageDialogComponent, {
+      UploadImageDialogResult>(UploadImageDialogComponent, {
       disableClose: true,
       panelClass: ['tb-dialog', 'tb-fullscreen-dialog'],
       data: {
@@ -150,12 +150,12 @@ export class ImageDialogComponent extends
         image: this.image
       }
     }).afterClosed().subscribe((result) => {
-      if (result) {
+      if (result?.image) {
         this.imageChanged = true;
-        this.image = result;
+        this.image = result.image;
         let url;
-        if (result.base64) {
-          url = result.base64;
+        if (result.image.base64) {
+          url = result.image.base64;
         } else {
           url = this.image.link;
         }
diff --git a/ui-ngx/src/app/shared/components/image/image-gallery.component.ts b/ui-ngx/src/app/shared/components/image/image-gallery.component.ts
index 0ea85837a8..5b50282ea7 100644
--- a/ui-ngx/src/app/shared/components/image/image-gallery.component.ts
+++ b/ui-ngx/src/app/shared/components/image/image-gallery.component.ts
@@ -62,7 +62,7 @@ import { ItemSizeStrategy, ScrollGridComponent } from '@shared/components/grid/s
 import { MatDialog } from '@angular/material/dialog';
 import {
   UploadImageDialogComponent,
-  UploadImageDialogData
+  UploadImageDialogData, UploadImageDialogResult
 } from '@shared/components/image/upload-image-dialog.component';
 import { ImageDialogComponent, ImageDialogData } from '@shared/components/image/image-dialog.component';
 import { ImportExportService } from '@shared/import-export/import-export.service';
@@ -650,20 +650,20 @@ export class ImageGalleryComponent extends PageComponent implements OnInit, OnDe
 
   uploadImage(): void {
     this.dialog.open<UploadImageDialogComponent, UploadImageDialogData,
-      ImageResourceInfo>(UploadImageDialogComponent, {
+      UploadImageDialogResult>(UploadImageDialogComponent, {
       disableClose: true,
       panelClass: ['tb-dialog', 'tb-fullscreen-dialog'],
       data: {
         imageSubType: this.imageSubType
       }
     }).afterClosed().subscribe((result) => {
-      if (result) {
+      if (result?.image) {
         if (this.selectionMode) {
-          this.imageSelected.next(result);
+          this.imageSelected.next(result.image);
         } else {
           if (this.isScada) {
-            const type = imageResourceType(result);
-            const key = encodeURIComponent(result.resourceKey);
+            const type = imageResourceType(result.image);
+            const key = encodeURIComponent(result.image.resourceKey);
             this.router.navigateByUrl(`resources/scada-symbols/${type}/${key}`);
           } else {
             this.updateData();
diff --git a/ui-ngx/src/app/shared/components/image/upload-image-dialog.component.html b/ui-ngx/src/app/shared/components/image/upload-image-dialog.component.html
index d55a5aa747..6f928639db 100644
--- a/ui-ngx/src/app/shared/components/image/upload-image-dialog.component.html
+++ b/ui-ngx/src/app/shared/components/image/upload-image-dialog.component.html
@@ -17,7 +17,7 @@
 -->
 <form [formGroup]="uploadImageFormGroup" (ngSubmit)="upload()" style="width: 560px;">
   <mat-toolbar color="primary">
-    <h2>{{ ( uploadImage ? (isScada ? 'scada.upload-symbol' : 'image.upload-image') : 'image.update-image' ) | translate }}</h2>
+    <h2>{{ ( uploadImage ? (isScada ? 'scada.upload-symbol' : 'image.upload-image') : (isScada ? 'scada.update-symbol' : 'image.update-image') ) | translate }}</h2>
     <span fxFlex></span>
     <button mat-icon-button
             (click)="cancel()"
diff --git a/ui-ngx/src/app/shared/components/image/upload-image-dialog.component.ts b/ui-ngx/src/app/shared/components/image/upload-image-dialog.component.ts
index 7c02505913..56f867aef1 100644
--- a/ui-ngx/src/app/shared/components/image/upload-image-dialog.component.ts
+++ b/ui-ngx/src/app/shared/components/image/upload-image-dialog.component.ts
@@ -46,6 +46,11 @@ export interface UploadImageDialogData {
   image?: ImageResourceInfo;
 }
 
+export interface UploadImageDialogResult {
+  image?: ImageResource;
+  scadaSymbolContent?: string;
+}
+
 @Component({
   selector: 'tb-upload-image-dialog',
   templateUrl: './upload-image-dialog.component.html',
@@ -53,7 +58,7 @@ export interface UploadImageDialogData {
   styleUrls: []
 })
 export class UploadImageDialogComponent extends
-  DialogComponent<UploadImageDialogComponent, ImageResource> implements OnInit, ErrorStateMatcher {
+  DialogComponent<UploadImageDialogComponent, UploadImageDialogResult> implements OnInit, ErrorStateMatcher {
 
   uploadImageFormGroup: UntypedFormGroup;
 
@@ -75,7 +80,7 @@ export class UploadImageDialogComponent extends
               private imageService: ImageService,
               @Inject(MAT_DIALOG_DATA) public data: UploadImageDialogData,
               @SkipSelf() private errorStateMatcher: ErrorStateMatcher,
-              public dialogRef: MatDialogRef<UploadImageDialogComponent, ImageResource>,
+              public dialogRef: MatDialogRef<UploadImageDialogComponent, UploadImageDialogResult>,
               public fb: UntypedFormBuilder) {
     super(store, router, dialogRef);
   }
@@ -142,16 +147,22 @@ export class UploadImageDialogComponent extends
         this.imageService.uploadImage(file, title, this.data.imageSubType),
         blobToBase64(file)
       ]).subscribe(([imageInfo, base64]) => {
-        this.dialogRef.close(Object.assign(imageInfo, {base64}));
+        this.dialogRef.close({image: Object.assign(imageInfo, {base64})});
       });
     } else {
-      const image = this.data.image;
-      forkJoin([
-        this.imageService.updateImage(imageResourceType(image), image.resourceKey, file),
-        blobToBase64(file)
-      ]).subscribe(([imageInfo, base64]) => {
-        this.dialogRef.close(Object.assign(imageInfo, {base64}));
-      });
+      if (this.isScada) {
+        blobToText(file).subscribe(scadaSymbolContent => {
+          this.dialogRef.close({scadaSymbolContent});
+        });
+      } else {
+        const image = this.data.image;
+        forkJoin([
+          this.imageService.updateImage(imageResourceType(image), image.resourceKey, file),
+          blobToBase64(file)
+        ]).subscribe(([imageInfo, base64]) => {
+          this.dialogRef.close({image:Object.assign(imageInfo, {base64})});
+        });
+      }
     }
   }
 }