# Seagate F3 Clear SMART
# Clears the SMART table on a Seagate F3 drive.
# Useful as a standalone step when SMART values show false errors
# or when clearing SMART resolves LED:000000BD / FAddr:00009887
# media cache related errors.
# Default baud: 38400, 8N1, no flow control.
#
# Steps: show current SMART, clear SMART, verify
#
# WARNING: This resets SMART attribute values. Power-on hours,
# error counts, and reallocated sector counts will be cleared.
# Use for diagnostics, not to conceal genuine drive health issues.

echo "============================================"
echo " Seagate F3 Clear SMART"
echo "============================================"

if $gui_mode = 0
  serialopen /dev/ttyUSB0 38400
else
  serialopen
endif
usleep 200000

echo "Waking terminal (Ctrl+Z)..."
serialsend \x1a
usleep 500000

echo "--- Terminal Banner ---"
buffersize 1024
serialread 1024
printbuffer 0 1024

echo ""
echo "Changing to level 1..."
serialsend \x2f\x31\x0d
usleep 200000

echo "--- Current SMART Values (N5) ---"
serialsend \x4e\x35\x0d
usleep 500000
buffersize 2048
serialread 2048
printbuffer 0 2048

echo ""
echo "=== Clearing SMART (N1) ==="
serialsend \x4e\x31\x0d
usleep 500000

echo "--- Clear Response ---"
serialread 1024
printbuffer 0 1024

echo ""
echo "--- SMART After Clear (N5) ---"
serialsend \x4e\x35\x0d
usleep 500000
buffersize 2048
serialread 2048
printbuffer 0 2048

echo ""
echo "Returning to level T..."
serialsend \x2f\x54\x0d
usleep 200000

echo ""
echo "============================================"
echo " SMART clear complete."
echo "============================================"

if $gui_mode = 0
  serialclose
endif
echo "=== Done ==="
end