Hi when trying your tool i do get on my just lately received pro 1 the timedout error. Using Linux Mint 19 (Ubuntu 18.04.3).
Dmesg gives me following:
[274941.104041] usb 1-5.2.1: new high-speed USB device number 14 using xhci_hcd
[274941.247425] usb 1-5.2.1: New USB device found, idVendor=05c6, idProduct=9008, bcdDevice= 0.00
[274941.247426] usb 1-5.2.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[274941.247427] usb 1-5.2.1: Product: QUSB__BULK
[274941.247428] usb 1-5.2.1: Manufacturer: Qualcomm CDMA Technologies MSM
[274941.248725] qcserial 1-5.2.1:1.
