diff --git a/ui-ngx/src/app/modules/home/components/iot-hub/device-install-dialog/device-install-dialog.component.html b/ui-ngx/src/app/modules/home/components/iot-hub/device-install-dialog/device-install-dialog.component.html
index 9958a877ba..b8dbe2bd92 100644
--- a/ui-ngx/src/app/modules/home/components/iot-hub/device-install-dialog/device-install-dialog.component.html
+++ b/ui-ngx/src/app/modules/home/components/iot-hub/device-install-dialog/device-install-dialog.component.html
@@ -154,7 +154,7 @@
                             <div class="tb-form-field-help">{{ field.helpText }}</div>
                           }
                           @if (field.helpImage) {
-                            <img class="tb-form-field-help-image" [src]="field.helpImage" [alt]="field.label">
+                            <img class="tb-form-field-help-image" [src]="resolveImagePath(field.helpImage)" [alt]="field.label">
                           }
                         }
                       </form>
diff --git a/ui-ngx/src/app/modules/home/components/iot-hub/device-install-dialog/device-install-dialog.component.ts b/ui-ngx/src/app/modules/home/components/iot-hub/device-install-dialog/device-install-dialog.component.ts
index 21c8254593..4348b7a3bb 100644
--- a/ui-ngx/src/app/modules/home/components/iot-hub/device-install-dialog/device-install-dialog.component.ts
+++ b/ui-ngx/src/app/modules/home/components/iot-hub/device-install-dialog/device-install-dialog.component.ts
@@ -275,6 +275,13 @@ export class TbDeviceInstallDialogComponent extends DialogComponent<TbDeviceInst
     });
   }
 
+  resolveImagePath(path: string): string {
+    if (path.startsWith('data:') || path.startsWith('http')) {
+      return path;
+    }
+    return this.zipImages.get(path) || path;
+  }
+
   getPatternErrorMessage(field: FormFieldDefinition): string {
     return field.validators?.[0]?.message || 'Invalid format';
   }