Revise error activity's guide

Add content about turning off/on the terminal option

Bug: 383026786
Test: check the contents
Change-Id: Iaa09cb7408fb5dbd06e30dbadeb1a3616ed46e62
diff --git a/android/TerminalApp/res/values/strings.xml b/android/TerminalApp/res/values/strings.xml
index 9cb6e4d..6e06b88 100644
--- a/android/TerminalApp/res/values/strings.xml
+++ b/android/TerminalApp/res/values/strings.xml
@@ -142,7 +142,7 @@
     <!-- Error page that shows error page [CHAR LIMIT=none] -->
     <string name="error_title">Unrecoverable error</string>
     <!-- Error page that shows error page [CHAR LIMIT=none] -->
-    <string name="error_desc">Failed to recover from an error.\nYou can try restarting terminal or try one of the recovery options.</string>
+    <string name="error_desc">Failed to recover from an error.\nYou can try restarting terminal or try one of the recovery options.\nIf all attempts fail, wipe all data by turning on/off Linux terminal from developer options."</string>
     <!-- Error page that shows detailed error code (error reason) for bugreport. [CHAR LIMIT=none] -->
     <string name="error_code">Error code: <xliff:g id="error_code" example="ACCESS_DENIED">%s</xliff:g></string>