diff --git a/java/res/xml-sw600dp/rows_symbols.xml b/java/res/xml-sw600dp/rows_symbols.xml
index 96695e83712e53c8d9fd14dfb2068d7c5eabac0c..96503e886e7e89a9d588c178417a23331b345439 100644
--- a/java/res/xml-sw600dp/rows_symbols.xml
+++ b/java/res/xml-sw600dp/rows_symbols.xml
@@ -89,9 +89,11 @@
         <Key
             latin:keyLabel="*"
             latin:moreKeys="@string/more_keys_for_star" />
+        <!-- U+2013: "–" EN DASH
+             U+2014: "—" EM DASH -->
         <Key
             latin:keyLabel="-"
-            latin:moreKeys="_,–,—" />
+            latin:moreKeys="_,&#x2013;,&#x2014;" />
         <Key
             latin:keyLabel="+"
             latin:moreKeys="@string/more_keys_for_plus" />
@@ -110,9 +112,11 @@
             latin:keyWidth="10.0%p" />
         <include
             latin:keyboardLayout="@xml/keys_less_greater" />
+        <!-- U+2260: "≠" NOT EQUAL TO
+             U+2248: "≈" ALMOST EQUAL TO -->
         <Key
             latin:keyLabel="="
-            latin:moreKeys="≠,≈" />
+            latin:moreKeys="&#x2260;,&#x2248;" />
         <switch>
             <case
                 latin:mode="url"
diff --git a/java/res/xml-sw768dp/rows_symbols.xml b/java/res/xml-sw768dp/rows_symbols.xml
index 96a86ec7c146626ca52f7381c83317e4c830f15a..a19af226513932e403e55f183568a9bfab0705e6 100644
--- a/java/res/xml-sw768dp/rows_symbols.xml
+++ b/java/res/xml-sw768dp/rows_symbols.xml
@@ -96,9 +96,11 @@
         <Key
             latin:keyLabel="*"
             latin:moreKeys="@string/more_keys_for_star" />
+        <!-- U+2013: "–" EN DASH
+             U+2014: "—" EM DASH -->
         <Key
             latin:keyLabel="-"
-            latin:moreKeys="_,–,—" />
+            latin:moreKeys="_,&#x2013;,&#x2014;" />
         <Key
             latin:keyLabel="+"
             latin:moreKeys="@string/more_keys_for_plus" />
@@ -117,9 +119,11 @@
             latin:keyWidth="13.829%p" />
         <include
             latin:keyboardLayout="@xml/keys_less_greater" />
+        <!-- U+2260: "≠" NOT EQUAL TO
+             U+2248: "≈" ALMOST EQUAL TO -->
         <Key
             latin:keyLabel="="
-            latin:moreKeys="≠,≈" />
+            latin:moreKeys="&#x2260;,&#x2248;" />
         <switch>
             <case
                 latin:mode="url"
diff --git a/java/res/xml/rows_symbols.xml b/java/res/xml/rows_symbols.xml
index 21f7d1d27361360cb18eaac3b6015d45c919f619..6d0467c6f23f5770cfa6b4e29168586f1b31bd14 100644
--- a/java/res/xml/rows_symbols.xml
+++ b/java/res/xml/rows_symbols.xml
@@ -87,9 +87,11 @@
         <Key
             latin:keyLabel="*"
             latin:moreKeys="@string/more_keys_for_star" />
+        <!-- U+2013: "–" EN DASH
+             U+2014: "—" EM DASH -->
         <Key
             latin:keyLabel="-"
-            latin:moreKeys="_,–,—" />
+            latin:moreKeys="_,&#x2013;,&#x2014;" />
         <Key
             latin:keyLabel="+"
             latin:moreKeys="@string/more_keys_for_plus" />