Just removed `btn:` as this doesn't work anyway (the callback is called with `1` as an argument so `load` would fail) and back via button is added automatically #2139 #2140

apps/about/app-bangle2.js

@@ -71,6 +71,5 @@ function drawImage() {
 setTimeout(drawInfo, 1000);
 Bangle.setUI({
   mode : "custom",
-  back : load,
-  btn : load
+  back : load
 });

apps/activityreminder/app.js

@@ -49,8 +49,7 @@
     drawInfo();
     Bangle.setUI({
       mode : "custom",
-      back : load,
-      btn : load
+      back : load
     })
   }