diff --git a/ROMFS/px4fmu_common/init.d/rc.sensors b/ROMFS/px4fmu_common/init.d/rc.sensors
index b413bd2113b18ebaef756a6713243bf21c6a2e27..24eff59faf0fb76f951d461b408115af6ac87ea3 100644
--- a/ROMFS/px4fmu_common/init.d/rc.sensors
+++ b/ROMFS/px4fmu_common/init.d/rc.sensors
@@ -31,7 +31,7 @@ fmu i2c 4 400000
 
 # echo "ms5611 -S start"
 # # External SPI
-ms5611 -S start
+#ms5611 -S start
 
 # echo "ms5611 -T 0 -s start"
 # # Internal SPI (auto detect ms5611 or ms5607)
@@ -69,7 +69,7 @@ bmi055 -G -R 10 start
 
 # # Possible internal compass
 #echo "ist8310 -C -R 8 -b 5 start"
-ist8310 -C -R 8 -b 5 start
+#ist8310 -C -R 8 -b 5 start
 
 #echo "ist8310 -C -b 1 start"
 ist8310 -C -b 1 start
diff --git a/platforms/nuttx/nuttx-configs/coolfly-f1/nsh/defconfig b/platforms/nuttx/nuttx-configs/coolfly-f1/nsh/defconfig
index b7e13031d69df7838cca33f94fbe081548f92098..30492624d6cc3ce4766442dbb190c075ed58e59a 100644
--- a/platforms/nuttx/nuttx-configs/coolfly-f1/nsh/defconfig
+++ b/platforms/nuttx/nuttx-configs/coolfly-f1/nsh/defconfig
@@ -262,7 +262,7 @@ CONFIG_AR_BKPSRAM=y
 
 CONFIG_AR_I2C_DYNTIMEO=y
 
-CONFIG_AR_I2C_DYNTIMEO_USECPERBYTE=1000
+CONFIG_AR_I2C_DYNTIMEO_USECPERBYTE=5000
 CONFIG_AR_I2C_DYNTIMEO_STARTSTOP=10
 
 # CONFIG_AR_OTGFS is not set
diff --git a/zero.image b/zero.image
new file mode 100644
index 0000000000000000000000000000000000000000..18e9a16289f2b5934809e4dc55a51f9c89af4aae
Binary files /dev/null and b/zero.image differ