diff --git a/CHANGELOG.md b/CHANGELOG.md
index 501d3efff..7cc14c01a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,7 @@
 # Changelog
+# 6.4.5
+* Fix Firmware syncing applying _every_ setting.
+
 # 6.4.4
 * Optimize AMQP connection.
 * Sync PinBindings with the API.
diff --git a/VERSION b/VERSION
index 49df80bfe..7d765dabd 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-6.4.4
+6.4.5
diff --git a/lib/farmbot/bootstrap/settings_sync.ex b/lib/farmbot/bootstrap/settings_sync.ex
index f0808567d..f2e8e09ff 100644
--- a/lib/farmbot/bootstrap/settings_sync.ex
+++ b/lib/farmbot/bootstrap/settings_sync.ex
@@ -151,8 +151,8 @@ defmodule Farmbot.Bootstrap.SettingsSync do
       run(tries_left - 1)
     else
       try do
-        do_sync_fbos_configs()
         do_sync_fw_configs()
+        do_sync_fbos_configs()
         Logger.debug 1, "Synced Farmbot OS and Firmware settings with API"
         :ok
       rescue
@@ -182,8 +182,8 @@ defmodule Farmbot.Bootstrap.SettingsSync do
     old_map = take_valid_fw(old_map)
     new_map = take_valid_fw(new_map)
     new_stuff = Map.new(new_map, fn({key, new_value}) ->
-      if old_map[key] !== new_value do
-        IO.puts "1 #{key} #{old_map[key]} !== #{new_value}"
+      if old_map[key] != new_value do
+        IO.puts "1 #{key} #{old_map[key]} != #{new_value}"
         apply_to_config_storage key, new_value
         {key, new_value}
       else
@@ -193,8 +193,8 @@ defmodule Farmbot.Bootstrap.SettingsSync do
 
     if Process.whereis(Farmbot.Firmware) do
       Map.new(new_map, fn({param, new_value}) ->
-        if old_map[param] !== new_value do
-          IO.puts "2 #{param} #{old_map[param]} !== #{new_value}"
+        if old_map[param] != new_value do
+          IO.puts "2 #{param} #{old_map[param]} != #{new_value}"
           Farmbot.Firmware.update_param(String.to_atom(param), new_value)
         end
         {param, get_config_value(:float, "hardware_params", param)}
@@ -219,7 +219,7 @@ defmodule Farmbot.Bootstrap.SettingsSync do
   defp apply_to_config_storage(key, val)
   when key in @firmware_keys do
     if val do
-      Logger.success 2, "Updating FW param: #{key}: #{get_config_value(:float, "hardware_params", key)} => #{val / 1 || "null"}"
+      Logger.success 2, "Updating FW param: #{key}: #{get_config_value(:float, "hardware_params", key)} => #{val}"
       update_config_value(:float, "hardware_params", key, val / 1)
     else
       Logger.warn 2, "Not allowing #{key} to be set to null"
diff --git a/lib/farmbot/firmware/uart_handler/uart_handler.ex b/lib/farmbot/firmware/uart_handler/uart_handler.ex
index b86e6d3dd..058cd1076 100644
--- a/lib/farmbot/firmware/uart_handler/uart_handler.ex
+++ b/lib/farmbot/firmware/uart_handler/uart_handler.ex
@@ -87,6 +87,7 @@ defmodule Farmbot.Firmware.UartHandler do
   defmodule State do
     @moduledoc false
     defstruct [
+      config_busy: false,
       nerves: nil,
       current_cmd: nil,
       tty: nil,
@@ -125,6 +126,8 @@ defmodule Farmbot.Firmware.UartHandler do
     end)
 
     case state do
+      %State{config_busy: true} = state ->
+        {:noreply, [:busy], state}
       %State{} = state ->
         {:noreply, [], state}
       _ -> state
@@ -137,7 +140,7 @@ defmodule Farmbot.Firmware.UartHandler do
     # Restart the framing to pick up new changes.
     UART.configure state.nerves, [framing: UART.Framing.None, active: false]
     configure_uart(state.nerves, true)
-    state
+    %{state | config_busy: true}
   end
 
   defp handle_config({:config, "settings", "firmware_hardware", val}, state) do
@@ -147,8 +150,8 @@ defmodule Farmbot.Firmware.UartHandler do
       UART.close(state.nerves)
       UartHandler.Update.force_update_firmware(val)
       open_tty(state.tty, state.nerves)
-      Farmbot.BotState.reset_sync_status
-      %{state | hw: val}
+      Farmbot.BotState.reset_sync_status()
+      %{state | hw: val, config_busy: true}
     else
       state
     end
@@ -273,7 +276,7 @@ defmodule Farmbot.Firmware.UartHandler do
   end
 
   def handle_info({:nerves_uart, _, {_q, :done}}, state) do
-    {:noreply, [:done], %{state | current_cmd: nil}}
+    {:noreply, [:done], %{state | current_cmd: nil, config_busy: false}}
   end
 
   def handle_info({:nerves_uart, _, {_q, gcode}}, state) do