Error initializing protocol

[bylion1294]

Attempting to setup an old galaxy s9 with lineage. Heimdall doesn't explicitly support it, but Lineage has a dedicated guide, so I assume it does work. Receiving this error when running heimdall print-pit, still plugged in, all drivers installed, everything. Zadig even says it installs successfully, but the phone never leaves download mode. Any help appreciated, first time installing a custom android distro.

`PS C:\Users\baylo> heimdall print-pit
Heimdall v1.4.2

Copyright (c) 2010-2017 Benjamin Dobell, Glass Echidna
http://www.glassechidna.com.au/

This software is provided free of charge. Copying and redistribution is
encouraged.

If you appreciate this software and you would like to support future
development please consider donating:
http://www.glassechidna.com.au/donate/

Initialising connection...
Detecting device...
libusb: error [init_device] device '\.\USB#VID_0C45&PID_636B&MI_02#7&315A9F63&0&0002' is no longer connected!
libusb: error [init_device] device '\.\USB#VID_046D&PID_C08B&MI_01#7&5A22FA0&0&0001' is no longer connected!
Claiming interface...
Setting up interface...

Initialising protocol...
ERROR: Unexpected handshake response!
ERROR: Protocol initialisation failed!

Releasing device interface...`

Edit: idk why it refuses to acknowledge that section as code despite the syntax, but I think it's pretty clear where the response is.

[julianfoad]

Duplicate of #413? I just added some help there.