diff --git a/app/src/emoji/index.ts b/app/src/emoji/index.ts
index d18ae9894..ea5dc6e8f 100644
--- a/app/src/emoji/index.ts
+++ b/app/src/emoji/index.ts
@@ -392,6 +392,9 @@ ${unicode2Emoji(emoji.unicode)}</button>`;
 };
 
 export const updateOutlineEmoji = (unicode: string) => {
+    if (isMobile()) {
+        return;
+    }
     getAllModels().outline.forEach(model => {
         model.headerElement.nextElementSibling.firstElementChild.innerHTML = unicode2Emoji(unicode || Constants.SIYUAN_IMAGE_FILE);
     });
@@ -400,11 +403,7 @@ export const updateOutlineEmoji = (unicode: string) => {
 export const updateFileTreeEmoji = (unicode: string, id: string, icon = "iconFile") => {
     let emojiElement;
     if (isMobile()) {
-        if (icon === "iconFile") {
-            emojiElement = document.querySelector(`#fileTree [data-node-id="${id}"] .b3-list-item__icon`);
-        } else {
-            emojiElement = document.querySelector(`#fileTree [data-node-id="${id}"] .b3-list-item__icon`) || document.querySelector(`#fileTree [data-url="${id}"] .b3-list-item__icon`);
-        }
+        emojiElement = document.querySelector(`#sidebar [data-type="sidebar-file"] [data-node-id="${id}"] .b3-list-item__icon`);
     } else {
         const files = getDockByType("file").data.file as Files;
         if (icon === "iconFile") {
diff --git a/app/src/layout/dock/Files.ts b/app/src/layout/dock/Files.ts
index 356bcc62d..c187c647b 100644
--- a/app/src/layout/dock/Files.ts
+++ b/app/src/layout/dock/Files.ts
@@ -194,7 +194,7 @@ export class Files extends Model {
                         event.preventDefault();
                         event.stopPropagation();
                         if (target.parentElement.getAttribute("data-type") === "navigation-file") {
-                            openEmojiPanel(target.parentElement.getAttribute("data-node-id"), target, false);
+                            openEmojiPanel(target.parentElement.getAttribute("data-node-id"), target);
                         } else {
                             openEmojiPanel(target.parentElement.parentElement.getAttribute("data-url"), target, true);
                         }
diff --git a/app/src/protyle/header/Background.ts b/app/src/protyle/header/Background.ts
index f4e401a05..d8247ce1e 100644
--- a/app/src/protyle/header/Background.ts
+++ b/app/src/protyle/header/Background.ts
@@ -235,7 +235,9 @@ export class Background {
                             id: protyle.block.rootID,
                             attrs: {"icon": emoji}
                         });
-                        protyle.model.parent.setDocIcon(emoji);
+                        if (protyle.model) {
+                            protyle.model.parent.setDocIcon(emoji);
+                        }
                     }
                     event.preventDefault();
                     event.stopPropagation();