diff --git a/CHANGELOG.md b/CHANGELOG.md
index c9240168..0db9b867 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,7 @@
 
  * Deprecate `resource_update` RPC
  * Introduce `update_resource` RPC, which allows users to modify variables from the sequence editor.
- * Allow Express users to upgrade from RPi0 => RPi3 (require ribbon cable and USB adapter).
+ * Allow Express users to upgrade from RPi0 => RPi3 (requires 40 pin ribbon cable and USB adapter).
  * Genesis v1.5 and Express v1.0 firmware updates.
 
 # 9.2.2
diff --git a/VERSION b/VERSION
index 85e917b6..6e1abfd8 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-10.0.0-rc2
+10.0.0-rc3
diff --git a/farmbot_os/lib/farmbot_os/sys_calls/flash_firmware.ex b/farmbot_os/lib/farmbot_os/sys_calls/flash_firmware.ex
index 00772ffe..e9605fb7 100644
--- a/farmbot_os/lib/farmbot_os/sys_calls/flash_firmware.ex
+++ b/farmbot_os/lib/farmbot_os/sys_calls/flash_firmware.ex
@@ -72,7 +72,7 @@ defmodule FarmbotOS.SysCalls.FlashFirmware do
     FarmbotCore.Logger.debug(2, "AVR flash returned #{inspect(result)}")
   end
 
-  defp find_tty() do
+  def find_tty() do
     case FirmwareTTYDetector.tty() do
       nil ->
         {:error,
@@ -85,12 +85,12 @@ defmodule FarmbotOS.SysCalls.FlashFirmware do
     end
   end
 
-  defp find_reset_fun("express_k10") do
+  def find_reset_fun("express_k10") do
     FarmbotCore.Logger.debug(3, "Using special express reset function")
     {:ok, fn -> express_reset_fun() end}
   end
 
-  defp find_reset_fun(_) do
+  def find_reset_fun(_) do
     FarmbotCore.Logger.debug(3, "Using default reset function")
     {:ok, &FarmbotFirmware.NullReset.reset/0}
   end