diff --git a/locale/ID.po b/locale/ID.po
index c147a5f5f9c72..18773a20276ad 100644
--- a/locale/ID.po
+++ b/locale/ID.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-12-12 14:51-0500\n"
+"POT-Creation-Date: 2019-12-12 15:33-0800\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -419,6 +419,10 @@ msgstr "Tidak bisa mendapatkan pull pada saat mode output"
 msgid "Cannot get temperature"
 msgstr "Tidak bisa mendapatkan temperatur. status: 0x%02x"
 
+#: shared-bindings/_bleio/Adapter.c
+msgid "Cannot have scan responses for extended, connectable advertisements."
+msgstr ""
+
 #: ports/atmel-samd/common-hal/audioio/AudioOut.c
 msgid "Cannot output both channels on the same pin"
 msgstr ""
diff --git a/locale/circuitpython.pot b/locale/circuitpython.pot
index e21541d7e2e69..f4b67521ce08e 100644
--- a/locale/circuitpython.pot
+++ b/locale/circuitpython.pot
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-12-12 15:51-0500\n"
+"POT-Creation-Date: 2019-12-12 15:33-0800\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -413,6 +413,10 @@ msgstr ""
 msgid "Cannot get temperature"
 msgstr ""
 
+#: shared-bindings/_bleio/Adapter.c
+msgid "Cannot have scan responses for extended, connectable advertisements."
+msgstr ""
+
 #: ports/atmel-samd/common-hal/audioio/AudioOut.c
 msgid "Cannot output both channels on the same pin"
 msgstr ""
diff --git a/locale/de_DE.po b/locale/de_DE.po
index f1158b1b3a24f..36d2f266d7211 100644
--- a/locale/de_DE.po
+++ b/locale/de_DE.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: \n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-12-12 14:51-0500\n"
+"POT-Creation-Date: 2019-12-12 15:33-0800\n"
 "PO-Revision-Date: 2018-07-27 11:55-0700\n"
 "Last-Translator: Pascal Deneaux\n"
 "Language-Team: Sebastian Plamauer, Pascal Deneaux\n"
@@ -417,6 +417,10 @@ msgstr "Pull up im Ausgabemodus nicht möglich"
 msgid "Cannot get temperature"
 msgstr "Kann Temperatur nicht holen"
 
+#: shared-bindings/_bleio/Adapter.c
+msgid "Cannot have scan responses for extended, connectable advertisements."
+msgstr ""
+
 #: ports/atmel-samd/common-hal/audioio/AudioOut.c
 msgid "Cannot output both channels on the same pin"
 msgstr "Kann nicht beite Kanäle auf dem gleichen Pin ausgeben"
diff --git a/locale/en_US.po b/locale/en_US.po
index c6f342186f4c5..7da32614f4a8d 100644
--- a/locale/en_US.po
+++ b/locale/en_US.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: \n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-12-12 14:51-0500\n"
+"POT-Creation-Date: 2019-12-12 15:33-0800\n"
 "PO-Revision-Date: 2018-07-27 11:55-0700\n"
 "Last-Translator: \n"
 "Language-Team: \n"
@@ -413,6 +413,10 @@ msgstr ""
 msgid "Cannot get temperature"
 msgstr ""
 
+#: shared-bindings/_bleio/Adapter.c
+msgid "Cannot have scan responses for extended, connectable advertisements."
+msgstr ""
+
 #: ports/atmel-samd/common-hal/audioio/AudioOut.c
 msgid "Cannot output both channels on the same pin"
 msgstr ""
diff --git a/locale/en_x_pirate.po b/locale/en_x_pirate.po
index 54d246e2de587..867618bd98ca1 100644
--- a/locale/en_x_pirate.po
+++ b/locale/en_x_pirate.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: \n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-12-12 14:51-0500\n"
+"POT-Creation-Date: 2019-12-12 15:33-0800\n"
 "PO-Revision-Date: 2018-07-27 11:55-0700\n"
 "Last-Translator: \n"
 "Language-Team: @sommersoft, @MrCertainly\n"
@@ -417,6 +417,10 @@ msgstr ""
 msgid "Cannot get temperature"
 msgstr ""
 
+#: shared-bindings/_bleio/Adapter.c
+msgid "Cannot have scan responses for extended, connectable advertisements."
+msgstr ""
+
 #: ports/atmel-samd/common-hal/audioio/AudioOut.c
 msgid "Cannot output both channels on the same pin"
 msgstr ""
diff --git a/locale/es.po b/locale/es.po
index 7ced099be5deb..285d1d85156b5 100644
--- a/locale/es.po
+++ b/locale/es.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: \n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-12-12 14:51-0500\n"
+"POT-Creation-Date: 2019-12-12 15:33-0800\n"
 "PO-Revision-Date: 2018-08-24 22:56-0500\n"
 "Last-Translator: \n"
 "Language-Team: \n"
@@ -419,6 +419,10 @@ msgstr "No puede ser pull mientras este en modo de salida"
 msgid "Cannot get temperature"
 msgstr "No se puede obtener la temperatura."
 
+#: shared-bindings/_bleio/Adapter.c
+msgid "Cannot have scan responses for extended, connectable advertisements."
+msgstr ""
+
 #: ports/atmel-samd/common-hal/audioio/AudioOut.c
 msgid "Cannot output both channels on the same pin"
 msgstr "No se puede tener ambos canales en el mismo pin"
diff --git a/locale/fil.po b/locale/fil.po
index 16fac72244dbb..6600ffb9a6fa9 100644
--- a/locale/fil.po
+++ b/locale/fil.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: \n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-12-12 14:51-0500\n"
+"POT-Creation-Date: 2019-12-12 15:33-0800\n"
 "PO-Revision-Date: 2018-12-20 22:15-0800\n"
 "Last-Translator: Timothy <me@timothygarcia.ca>\n"
 "Language-Team: fil\n"
@@ -421,6 +421,10 @@ msgstr "Hindi makakakuha ng pull habang nasa output mode"
 msgid "Cannot get temperature"
 msgstr "Hindi makuha ang temperatura. status 0x%02x"
 
+#: shared-bindings/_bleio/Adapter.c
+msgid "Cannot have scan responses for extended, connectable advertisements."
+msgstr ""
+
 #: ports/atmel-samd/common-hal/audioio/AudioOut.c
 msgid "Cannot output both channels on the same pin"
 msgstr "Hindi maaaring output ang mga parehong channel sa parehong pin"
diff --git a/locale/fr.po b/locale/fr.po
index 9762b5e7da222..6437b8ba86f3e 100644
--- a/locale/fr.po
+++ b/locale/fr.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: 0.1\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-12-12 14:51-0500\n"
+"POT-Creation-Date: 2019-12-12 15:33-0800\n"
 "PO-Revision-Date: 2019-04-14 20:05+0100\n"
 "Last-Translator: Pierrick Couturier <arofarn@arofarn.info>\n"
 "Language-Team: fr\n"
@@ -425,6 +425,10 @@ msgstr "Ne peut être tiré ('pull') en mode 'output'"
 msgid "Cannot get temperature"
 msgstr "Impossible de lire la température"
 
+#: shared-bindings/_bleio/Adapter.c
+msgid "Cannot have scan responses for extended, connectable advertisements."
+msgstr ""
+
 #: ports/atmel-samd/common-hal/audioio/AudioOut.c
 msgid "Cannot output both channels on the same pin"
 msgstr "Les 2 canaux de sortie ne peuvent être sur la même broche"
diff --git a/locale/it_IT.po b/locale/it_IT.po
index 0a3c30d2bdc47..a659664a009e8 100644
--- a/locale/it_IT.po
+++ b/locale/it_IT.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-12-12 14:51-0500\n"
+"POT-Creation-Date: 2019-12-12 15:33-0800\n"
 "PO-Revision-Date: 2018-10-02 16:27+0200\n"
 "Last-Translator: Enrico Paganin <enrico.paganin@mail.com>\n"
 "Language-Team: \n"
@@ -421,6 +421,10 @@ msgstr "non si può tirare quando nella modalita output"
 msgid "Cannot get temperature"
 msgstr "Impossibile leggere la temperatura. status: 0x%02x"
 
+#: shared-bindings/_bleio/Adapter.c
+msgid "Cannot have scan responses for extended, connectable advertisements."
+msgstr ""
+
 #: ports/atmel-samd/common-hal/audioio/AudioOut.c
 msgid "Cannot output both channels on the same pin"
 msgstr "Impossibile dare in output entrambi i canal sullo stesso pin"
diff --git a/locale/ko.po b/locale/ko.po
index 78f0c756b1f4a..c47c10a94def3 100644
--- a/locale/ko.po
+++ b/locale/ko.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-12-12 14:51-0500\n"
+"POT-Creation-Date: 2019-12-12 15:33-0800\n"
 "PO-Revision-Date: 2019-05-06 14:22-0700\n"
 "Last-Translator: \n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -417,6 +417,10 @@ msgstr ""
 msgid "Cannot get temperature"
 msgstr "온도 데이터를 수신 할 수 없습니다"
 
+#: shared-bindings/_bleio/Adapter.c
+msgid "Cannot have scan responses for extended, connectable advertisements."
+msgstr ""
+
 #: ports/atmel-samd/common-hal/audioio/AudioOut.c
 msgid "Cannot output both channels on the same pin"
 msgstr ""
diff --git a/locale/pl.po b/locale/pl.po
index 60aac45a3f091..8d564c243133f 100644
--- a/locale/pl.po
+++ b/locale/pl.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: \n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-12-12 14:51-0500\n"
+"POT-Creation-Date: 2019-12-12 15:33-0800\n"
 "PO-Revision-Date: 2019-03-19 18:37-0700\n"
 "Last-Translator: Radomir Dopieralski <circuitpython@sheep.art.pl>\n"
 "Language-Team: pl\n"
@@ -416,6 +416,10 @@ msgstr "Nie ma podciągnięcia w trybie wyjścia"
 msgid "Cannot get temperature"
 msgstr "Nie można odczytać temperatury"
 
+#: shared-bindings/_bleio/Adapter.c
+msgid "Cannot have scan responses for extended, connectable advertisements."
+msgstr ""
+
 #: ports/atmel-samd/common-hal/audioio/AudioOut.c
 msgid "Cannot output both channels on the same pin"
 msgstr "Nie można mieć obu kanałów na tej samej nóżce"
diff --git a/locale/pt_BR.po b/locale/pt_BR.po
index 0aa2ac6308976..48cf9e77ef6ce 100644
--- a/locale/pt_BR.po
+++ b/locale/pt_BR.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-12-12 14:51-0500\n"
+"POT-Creation-Date: 2019-12-12 15:33-0800\n"
 "PO-Revision-Date: 2018-10-02 21:14-0000\n"
 "Last-Translator: \n"
 "Language-Team: \n"
@@ -418,6 +418,10 @@ msgstr ""
 msgid "Cannot get temperature"
 msgstr "Não pode obter a temperatura. status: 0x%02x"
 
+#: shared-bindings/_bleio/Adapter.c
+msgid "Cannot have scan responses for extended, connectable advertisements."
+msgstr ""
+
 #: ports/atmel-samd/common-hal/audioio/AudioOut.c
 msgid "Cannot output both channels on the same pin"
 msgstr ""
diff --git a/locale/zh_Latn_pinyin.po b/locale/zh_Latn_pinyin.po
index bd5b80a72450a..63889a52d66ed 100644
--- a/locale/zh_Latn_pinyin.po
+++ b/locale/zh_Latn_pinyin.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: circuitpython-cn\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2019-12-12 14:51-0500\n"
+"POT-Creation-Date: 2019-12-12 15:33-0800\n"
 "PO-Revision-Date: 2019-04-13 10:10-0700\n"
 "Last-Translator: hexthat\n"
 "Language-Team: Chinese Hanyu Pinyin\n"
@@ -417,6 +417,10 @@ msgstr "Zài shūchū móshì xià wúfǎ huòqǔ lādòng"
 msgid "Cannot get temperature"
 msgstr "Wúfǎ huòqǔ wēndù"
 
+#: shared-bindings/_bleio/Adapter.c
+msgid "Cannot have scan responses for extended, connectable advertisements."
+msgstr ""
+
 #: ports/atmel-samd/common-hal/audioio/AudioOut.c
 msgid "Cannot output both channels on the same pin"
 msgstr "Wúfǎ shūchū tóng yīgè yǐn jiǎo shàng de liǎng gè píndào"
diff --git a/shared-bindings/_bleio/Adapter.c b/shared-bindings/_bleio/Adapter.c
index 9772fa830d151..5d3211b0c489b 100644
--- a/shared-bindings/_bleio/Adapter.c
+++ b/shared-bindings/_bleio/Adapter.c
@@ -29,6 +29,7 @@
 
 #include "py/objproperty.h"
 #include "py/runtime.h"
+#include "shared-bindings/_bleio/__init__.h"
 #include "shared-bindings/_bleio/Address.h"
 #include "shared-bindings/_bleio/Adapter.h"
 
@@ -185,7 +186,12 @@ STATIC mp_obj_t bleio_adapter_start_advertising(mp_uint_t n_args, const mp_obj_t
                                  ADV_INTERVAL_MIN_STRING, ADV_INTERVAL_MAX_STRING);
     }
 
-    common_hal_bleio_adapter_start_advertising(self, args[ARG_connectable].u_bool, interval,
+    bool connectable = args[ARG_connectable].u_bool;
+    if (data_bufinfo.len > 31 && connectable && scan_response_bufinfo.len > 0) {
+        mp_raise_bleio_BluetoothError(translate("Cannot have scan responses for extended, connectable advertisements."));
+    }
+
+    common_hal_bleio_adapter_start_advertising(self, connectable, interval,
                                                &data_bufinfo, &scan_response_bufinfo);
 
     return mp_const_none;