diff --git a/bin/device-install.sh b/bin/device-install.sh
index b0ba6ef37..f0157da2d 100755
--- a/bin/device-install.sh
+++ b/bin/device-install.sh
@@ -11,7 +11,7 @@ Usage: $(basename $0) [-h] [-p ESPTOOL_PORT] [-P PYTHON] [-f FILENAME|FILENAME]
 Flash image file to device, but first erasing and writing system information"
 
     -h               Display this help and exit
-    -p ESPTOOL_PORT  Set the environment variable for ESPTOOL_PORT.  If not set, ESPTOOL iterates all ports (Dangerrous).
+    -p ESPTOOL_PORT  Set the environment variable for ESPTOOL_PORT.  If not set, ESPTOOL iterates all ports (Dangerous).
     -P PYTHON        Specify alternate python interpreter to use to invoke esptool. (Default: "$PYTHON")
     -f FILENAME      The .bin file to flash.  Custom to your device type and region.
 EOF
@@ -44,12 +44,15 @@ shift "$((OPTIND-1))"
     shift
 }
 
+# check that esptool is installed
+"$PYTHON" -m esptool -h >/dev/null 2>&1 || echo "Error: esptool was not found."; exit 1
+
 if [ -f "${FILENAME}" ]; then
 	echo "Trying to flash ${FILENAME}, but first erasing and writing system information"
-	$PYTHON -m esptool  erase_flash
-	$PYTHON -m esptool  write_flash 0x1000 system-info.bin
-	$PYTHON -m esptool  write_flash 0x00390000 spiffs-*.bin
-	$PYTHON -m esptool  write_flash 0x10000 ${FILENAME}
+	"$PYTHON" -m esptool  erase_flash
+	"$PYTHON" -m esptool  write_flash 0x1000 system-info.bin
+	"$PYTHON" -m esptool  write_flash 0x00390000 spiffs-*.bin
+	"$PYTHON" -m esptool  write_flash 0x10000 ${FILENAME}
 else
 	echo "Invalid file: ${FILENAME}"
 	show_help
diff --git a/proto b/proto
index 18fc4cdb5..e992214ce 160000
--- a/proto
+++ b/proto
@@ -1 +1 @@
-Subproject commit 18fc4cdb522cb3740b3b547b3eac57781ca9c1f0
+Subproject commit e992214cefbf9eb6e291eaab064333ae88610809
diff --git a/src/configuration.h b/src/configuration.h
index 57469bfd5..7a482151a 100644
--- a/src/configuration.h
+++ b/src/configuration.h
@@ -428,8 +428,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #define BATTERY_PIN 35 // A battery voltage measurement pin, voltage divider connected here to measure battery voltage
 
-#define I2C_SDA 4 // I2C pins for this board
-#define I2C_SCL 15
+#define I2C_SDA 21 // I2C pins for this board
+#define I2C_SCL 22
 
 #define RESET_OLED 16 // If defined, this pin will be used to reset the display controller
 
diff --git a/version.properties b/version.properties
index 7c9e94a60..5b1bdaf4d 100644
--- a/version.properties
+++ b/version.properties
@@ -1,4 +1,4 @@
 [VERSION]  
 major = 1  
 minor = 2
-build = 50
+build = 52