diff --git a/setup.sh b/setup.sh
index 44a3a88..ed25e16 100644
--- a/setup.sh
+++ b/setup.sh
@@ -17,65 +17,53 @@ echo "Step 1: Updating package lists and upgrading..."
 sudo apt update && sudo apt upgrade -y
 
 # ---------------------------------------------------------
-# Step 2: Install essential development and serial tools
+# Step 2: Install core tools and Python requirements
 # ---------------------------------------------------------
-echo "Step 2: Installing core tools and dependencies..."
+echo "Step 2: Installing tools and Python libraries..."
 sudo apt install -y git curl python3 python3-pip build-essential cmake \
   arduino-cli teensy-loader-cli python3-serial
 
-# ---------------------------------------------------------
-# Step 3: Download NTP TimeTurner script
-# ---------------------------------------------------------
-echo "Step 3: Downloading TimeTurner daemon script..."
-cd /home/pi
-wget -O timeturner.py https://raw.githubusercontent.com/cjfranko/NTP-Timeturner/master/timeturner.py
-chmod +x timeturner.py
-
-# ---------------------------------------------------------
-# Step 4: Install Python requirements
-# ---------------------------------------------------------
-echo "Step 4: Installing Python packages..."
+echo "Installing Python package: pylibltc"
 pip3 install --break-system-packages pylibltc
 
 # ---------------------------------------------------------
-# Step 5: Prepare Teensy 4.0 programming
+# Step 3: Download and apply splash screen
 # ---------------------------------------------------------
-echo "Step 5: Configuring Teensy programming environment..."
-if [ ! -d "$HOME/teensy-firmware" ]; then
-  git clone https://github.com/cjfranko/ltc-to-serial-teensy.git "$HOME/teensy-firmware"
-fi
-cd "$HOME/teensy-firmware"
-arduino-cli compile --fqbn arduino:avr:teensy40 .
-arduino-cli upload -p /dev/ttyACM0 --fqbn arduino:avr:teensy40 .
-
-# ---------------------------------------------------------
-# Step 6: Download and apply splash screen
-# ---------------------------------------------------------
-echo "Step 6: Downloading and applying custom splash screen..."
+echo "Step 3: Downloading and applying splash screen..."
 cd /home/pi
 wget -O splash.png https://raw.githubusercontent.com/cjfranko/NTP-Timeturner/master/splash.png
+
 if [ -f splash.png ]; then
   sudo cp splash.png /usr/share/plymouth/themes/pix/splash.png
   sudo chmod 644 /usr/share/plymouth/themes/pix/splash.png
-  echo "✅ Splash screen updated."
+  echo "✅ Splash screen applied."
 else
   echo "⚠️ splash.png not found — skipping."
 fi
 
 # ---------------------------------------------------------
-# Step 7: Enable systemd service
+# Step 4: Download Teensy firmware and flash if available
 # ---------------------------------------------------------
-echo "Step 7: Setting up systemd service..."
-sudo cp timeturner.service /etc/systemd/system/
-sudo systemctl daemon-reload
-sudo systemctl enable timeturner.service
+echo "Step 4: Downloading firmware..."
+cd /home/pi
+wget -O ltc_audiohat_lock.ino.hex https://raw.githubusercontent.com/cjfranko/NTP-Timeturner/master/firmware/ltc_audiohat_lock.ino.hex
+
+echo "Checking for connected Teensy 4.0..."
+if ls /dev/ttyACM* 1> /dev/null 2>&1; then
+  echo "✅ Teensy detected. Flashing firmware..."
+  teensy-loader-cli --mcu=TEENSY40 -w -v ltc_audiohat_lock.ino.hex
+  echo "✅ Firmware uploaded successfully."
+else
+  echo "⚠️ No Teensy detected on /dev/ttyACM* — firmware not flashed."
+fi
 
 # ---------------------------------------------------------
-# Final Message & Reboot
+# Final Message
 # ---------------------------------------------------------
+echo ""
 echo "─────────────────────────────────────────────"
-echo "  Setup Complete — Temporal alignment achieved."
+echo "  Setup Complete — Time magic is in place."
 echo "─────────────────────────────────────────────"
-echo "Rebooting in 15 seconds to apply settings..."
-sleep 15
-sudo reboot
+echo "Teensy tools are installed, firmware is ready."
+echo "Your Raspberry Pi is now ready for testing."
+echo ""