diff --git a/MCCI-ADDING-BOARDS.md b/MCCI-ADDING-BOARDS.md
index 9e05643a3..bc0137875 100644
--- a/MCCI-ADDING-BOARDS.md
+++ b/MCCI-ADDING-BOARDS.md
@@ -44,7 +44,7 @@ The following template should be used as a starting point for adding a board.
 {{board}}.menu.lorawan_region.projcfg=Use arduino-lmic/project_confic/lmic_project_lmic_config_preconditions.h
 {{board}}.menu.lorawan_region.us915.build.lorawan_flags=-DCFG_us915=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
 {{board}}.menu.lorawan_region.eu868.build.lorawan_flags=-DCFG_eu868=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
-{{board}}.menu.lorawan_region.au915.build.lorawan_flags=-DCFG_au921=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
+{{board}}.menu.lorawan_region.au921.build.lorawan_flags=-DCFG_au921=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
 {{board}}.menu.lorawan_region.as923.build.lorawan_flags=-DCFG_as923=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
 {{board}}.menu.lorawan_region.as923jp.build.lorawan_flags=-DCFG_as923=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
 {{board}}.menu.lorawan_region.in866.build.lorawan_flags=-DCFG_in866=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
diff --git a/boards.txt b/boards.txt
index 84a5cdae3..4594b6505 100644
--- a/boards.txt
+++ b/boards.txt
@@ -44,7 +44,7 @@ mcci_catena_4410.menu.lorawan_region.in866=India 866 MHz
 mcci_catena_4410.menu.lorawan_region.projcfg=Use arduino-lmic/project_confic/lmic_project_lmic_config_preconditions.h
 mcci_catena_4410.menu.lorawan_region.us915.build.lorawan_flags=-DCFG_us915=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
 mcci_catena_4410.menu.lorawan_region.eu868.build.lorawan_flags=-DCFG_eu868=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
-mcci_catena_4410.menu.lorawan_region.au915.build.lorawan_flags=-DCFG_au921=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
+mcci_catena_4410.menu.lorawan_region.au921.build.lorawan_flags=-DCFG_au921=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
 mcci_catena_4410.menu.lorawan_region.as923.build.lorawan_flags=-DCFG_as923=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
 mcci_catena_4410.menu.lorawan_region.as923jp.build.lorawan_flags=-DCFG_as923=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
 mcci_catena_4410.menu.lorawan_region.in866.build.lorawan_flags=-DCFG_in866=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
@@ -89,7 +89,7 @@ mcci_catena_4420.menu.lorawan_region.in866=India 866 MHz
 mcci_catena_4420.menu.lorawan_region.projcfg=Use arduino-lmic/project_confic/lmic_project_lmic_config_preconditions.h
 mcci_catena_4420.menu.lorawan_region.us915.build.lorawan_flags=-DCFG_us915=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
 mcci_catena_4420.menu.lorawan_region.eu868.build.lorawan_flags=-DCFG_eu868=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
-mcci_catena_4420.menu.lorawan_region.au915.build.lorawan_flags=-DCFG_au921=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
+mcci_catena_4420.menu.lorawan_region.au921.build.lorawan_flags=-DCFG_au921=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
 mcci_catena_4420.menu.lorawan_region.as923.build.lorawan_flags=-DCFG_as923=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
 mcci_catena_4420.menu.lorawan_region.as923jp.build.lorawan_flags=-DCFG_as923=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
 mcci_catena_4420.menu.lorawan_region.in866.build.lorawan_flags=-DCFG_in866=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
@@ -134,7 +134,7 @@ mcci_catena_4450.menu.lorawan_region.in866=India 866 MHz
 mcci_catena_4450.menu.lorawan_region.projcfg=Use arduino-lmic/project_confic/lmic_project_lmic_config_preconditions.h
 mcci_catena_4450.menu.lorawan_region.us915.build.lorawan_flags=-DCFG_us915=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
 mcci_catena_4450.menu.lorawan_region.eu868.build.lorawan_flags=-DCFG_eu868=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
-mcci_catena_4450.menu.lorawan_region.au915.build.lorawan_flags=-DCFG_au921=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
+mcci_catena_4450.menu.lorawan_region.au921.build.lorawan_flags=-DCFG_au921=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
 mcci_catena_4450.menu.lorawan_region.as923.build.lorawan_flags=-DCFG_as923=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
 mcci_catena_4450.menu.lorawan_region.as923jp.build.lorawan_flags=-DCFG_as923=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
 mcci_catena_4450.menu.lorawan_region.in866.build.lorawan_flags=-DCFG_in866=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
@@ -179,7 +179,7 @@ mcci_catena_4460.menu.lorawan_region.in866=India 866 MHz
 mcci_catena_4460.menu.lorawan_region.projcfg=Use arduino-lmic/project_confic/lmic_project_lmic_config_preconditions.h
 mcci_catena_4460.menu.lorawan_region.us915.build.lorawan_flags=-DCFG_us915=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
 mcci_catena_4460.menu.lorawan_region.eu868.build.lorawan_flags=-DCFG_eu868=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
-mcci_catena_4460.menu.lorawan_region.au915.build.lorawan_flags=-DCFG_au921=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
+mcci_catena_4460.menu.lorawan_region.au921.build.lorawan_flags=-DCFG_au921=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
 mcci_catena_4460.menu.lorawan_region.as923.build.lorawan_flags=-DCFG_as923=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
 mcci_catena_4460.menu.lorawan_region.as923jp.build.lorawan_flags=-DCFG_as923=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
 mcci_catena_4460.menu.lorawan_region.in866.build.lorawan_flags=-DCFG_in866=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
@@ -224,7 +224,7 @@ mcci_catena_4470.menu.lorawan_region.in866=India 866 MHz
 mcci_catena_4470.menu.lorawan_region.projcfg=Use arduino-lmic/project_confic/lmic_project_lmic_config_preconditions.h
 mcci_catena_4470.menu.lorawan_region.us915.build.lorawan_flags=-DCFG_us915=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
 mcci_catena_4470.menu.lorawan_region.eu868.build.lorawan_flags=-DCFG_eu868=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
-mcci_catena_4470.menu.lorawan_region.au915.build.lorawan_flags=-DCFG_au921=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
+mcci_catena_4470.menu.lorawan_region.au921.build.lorawan_flags=-DCFG_au921=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
 mcci_catena_4470.menu.lorawan_region.as923.build.lorawan_flags=-DCFG_as923=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
 mcci_catena_4470.menu.lorawan_region.as923jp.build.lorawan_flags=-DCFG_as923=1 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h
 mcci_catena_4470.menu.lorawan_region.in866.build.lorawan_flags=-DCFG_in866 -DCFG_sx1276_radio=1 -DARDUINO_LMIC_PROJECT_CONFIG_H=lmic_config_preconditions.h