diff --git a/apps/common/mobile/lib/controller/Collaboration.js b/apps/common/mobile/lib/controller/Collaboration.js
index 04af79560..b928b0619 100644
--- a/apps/common/mobile/lib/controller/Collaboration.js
+++ b/apps/common/mobile/lib/controller/Collaboration.js
@@ -851,7 +851,7 @@ define([
                         }
                     } else {
                         $('.comment-resolve, .comment-menu, .add-reply, .reply-menu').removeClass('disabled');
-                        if (this.showComments.length > 1) {
+                        if (this.showComments && this.showComments.length > 1) {
                             $('.prev-comment, .next-comment').removeClass('disabled');
                         }
                     }
@@ -863,7 +863,7 @@ define([
                 $('.comment-menu').single('click', _.buffered(this.initMenuComments, 100, this));
                 $('.reply-menu').single('click', _.buffered(this.initReplyMenu, 100, this));
                 $('.comment-resolve').single('click', _.bind(this.onClickResolveComment, this, false));
-                if (this.showComments.length === 1) {
+                if (this.showComments && this.showComments.length === 1) {
                     $('.prev-comment, .next-comment').addClass('disabled');
                 }
             },
@@ -921,7 +921,7 @@ define([
                 $('.reply-menu').single('click', _.buffered(me.initReplyMenu, 100, me));
                 $('.comment-resolve').single('click', _.bind(me.onClickResolveComment, me, false));
 
-                if (me.showComments.length === 1) {
+                if (me.showComments && me.showComments.length === 1) {
                     $('.prev-comment, .next-comment').addClass('disabled');
                 }
 
@@ -998,7 +998,7 @@ define([
             },
 
             onViewPrevComment: function() {
-                if (this.showComments.length > 0) {
+                if (this.showComments && this.showComments.length > 0) {
                     if (this.indexCurrentComment - 1 < 0) {
                         this.indexCurrentComment = this.showComments.length - 1;
                     } else {
@@ -1015,7 +1015,7 @@ define([
             },
 
             onViewNextComment: function() {
-                if (this.showComments.length > 0) {
+                if (this.showComments && this.showComments.length > 0) {
                     if (this.indexCurrentComment + 1 === this.showComments.length) {
                         this.indexCurrentComment = 0;
                     } else {
diff --git a/apps/spreadsheeteditor/mobile/app/controller/DocumentHolder.js b/apps/spreadsheeteditor/mobile/app/controller/DocumentHolder.js
index 85d811549..d2f07129b 100644
--- a/apps/spreadsheeteditor/mobile/app/controller/DocumentHolder.js
+++ b/apps/spreadsheeteditor/mobile/app/controller/DocumentHolder.js
@@ -237,7 +237,12 @@ define([
                     break;
                 case 'viewcomment':
                     me.view.hideMenu();
-                    SSE.getController('Common.Controllers.Collaboration').showCommentModal();
+                    var cellinfo = this.api.asc_getCellInfo(),
+                        comments = cellinfo.asc_getComments();
+                    if (comments.length) {
+                        SSE.getController('Common.Controllers.Collaboration').apiShowComments(comments[0].asc_getId());
+                        SSE.getController('Common.Controllers.Collaboration').showCommentModal();
+                    }
                     break;
                 case 'addcomment':
                     me.view.hideMenu();
@@ -248,7 +253,7 @@ define([
                 if ('showActionSheet' == event && _actionSheets.length > 0) {
                     _.delay(function () {
                         _.each(_actionSheets, function (action) {
-                            action.text = action.caption
+                            action.text = action.caption;
                             action.onClick = function () {
                                 me.onContextMenuClick(null, action.event)
                             }