old_contents: #!/usr/bin/env python
  from __future__ import print_function
  
  import sys
  import time
  import usb1
  
  def enter_download_mode(device):
    handle = device.open()
    handle.claimInterface(0)
  
    try:
      handle.controlWrite(usb1.TYPE_VENDOR | usb1.RECIPIENT_DEVICE, 0xd1, 0, 0, b'')
    except usb1.USBErrorIO as e:
      print("Device download mode enabled.")
      time.sleep(1)
    else:
      print("Device failed to enter download mode.")
      sys.exit(1)
  
  def find_first_panda(context=None):
    context = context or usb1.USBContext()
    for device in context.getDeviceList(skip_on_error=True):
      if device.getVendorID() == 0xbbaa and device.getProductID()&0xFF00 == 0xdd00:
        return device
  
  if __name__ == "__main__":
    panda_dev = find_first_panda()
    if panda_dev == None:
      print("no device found")
      sys.exit(0)
    print("found device")
    enter_download_mode(panda_dev)
  
new_contents: #!/usr/bin/env python
  from __future__ import print_function
  
  import sys
  import time
  import usb1
  
  def enter_download_mode(device):
    handle = device.open()
    handle.claimInterface(0)
  
    try:
      handle.controlWrite(usb1.TYPE_VENDOR | usb1.RECIPIENT_DEVICE, 0xd1, 0, 0, b'')
    except Exception:
      pass
    time.sleep(1)
  
  def find_first_panda(context=None):
    context = context or usb1.USBContext()
    for device in context.getDeviceList(skip_on_error=True):
      if device.getVendorID() == 0xbbaa and device.getProductID()&0xFF00 == 0xdd00:
        return device
  
  if __name__ == "__main__":
    panda_dev = find_first_panda()
    if panda_dev == None:
      print("no device found")
      sys.exit(0)
    print("found device")
    enter_download_mode(panda_dev)
  
subject: fix openpilot board flashing