diff --git a/examples/companion_radio/DataStore.cpp b/examples/companion_radio/DataStore.cpp
index da249942..818523b4 100644
--- a/examples/companion_radio/DataStore.cpp
+++ b/examples/companion_radio/DataStore.cpp
@@ -428,7 +428,8 @@ void DataStore::loadPrefsInt(const char *filename, NodePrefs& _prefs, double& no
   if (_prefs.alarm_on > 1)    _prefs.alarm_on = 0;
   if (_prefs.alarm_hour > 23) _prefs.alarm_hour = 0;
   if (_prefs.alarm_min > 59)  _prefs.alarm_min = 0;
-  // → 0xC0DE0018: keyboard type (QWERTY/T9).
+  // → 0xC0DE001A: keyboard type (QWERTY/T9). Pre-0x1A files leave stray sentinel
+  // tail bytes here; clamp back to the QWERTY default (0).
   rd(&_prefs.keyboard_type, sizeof(_prefs.keyboard_type));
   if (_prefs.keyboard_type > 1) _prefs.keyboard_type = 0;
   // Pre-0x10 files leave stray sentinel bytes here, same as a never-configured
diff --git a/examples/companion_radio/NodePrefs.h b/examples/companion_radio/NodePrefs.h
index 9dd559d7..e89a4605 100644
--- a/examples/companion_radio/NodePrefs.h
+++ b/examples/companion_radio/NodePrefs.h
@@ -351,7 +351,7 @@ struct NodePrefs {  // persisted to file
   // adding/removing/reordering fields in DataStore::savePrefs/loadPrefsInt so
   // older saves are detected on load and skipped (zero-init defaults kept).
   // High 24 bits identify the file format; low byte is the schema revision.
-  static const uint32_t SCHEMA_SENTINEL = 0xC0DE0019;
+  static const uint32_t SCHEMA_SENTINEL = 0xC0DE001A;
 
   // Bit-index for each home page. Used by page_order (entries store bit+1) and
   // by home_pages_mask. Single source of truth — both HomeScreen::pageBit/bitToPage