correct condition for change TWRP folder

Change-Id: I3549d3be3bf2d4557055b9ca48a84f88db44eca7
(cherry picked from commit 7007c999f905cfe30cd961fbebed95c230fe5498)
diff --git a/gui/theme/common/portrait.xml b/gui/theme/common/portrait.xml
index d3dba41..9abea7a 100755
--- a/gui/theme/common/portrait.xml
+++ b/gui/theme/common/portrait.xml
@@ -3863,7 +3863,7 @@
 			<listbox style="advanced_listbox">
 				<placement x="%indent%" y="%row13a_y%" w="%content_width%" h="%listbox_advanced_height%"/>
 				<listitem name="{@change_twrp_folder_btn=Change TWRP folder}">
-					<condition var1="tw_is_encrypted" var2="0"/>
+					<condition var1="tw_is_decrypted" var2="1"/>
 					<action function="page">changeTwrpFolder</action>
 				</listitem>
 				<listitem name="{@decrypt_users=Decrypt Users}">