WiPy 3.0 + PySense - Updated PySense FW, Cannot update WiPy 3.0 Firmware

[kingb]

So, I just bought a WiPy 3.0 and a PySense. I updated the PySense firmware to v0.0.8 successfully. The issue now is that I cannot update the WiPy 3.0 firmware.

I tried running the pycom-fwtool on Ubuntu 16.04 and Windows 10.

Here is the output from the CLI:

$ sudo pycom-fwtool-cli --port /dev/ttyACM0 --speed 115200 --verbose wmac
Running in PIC mode
Product ID: 18 HW Version: 3 FW Version: 0.0.8
Connecting........_____....._____....._____....._____....._____....._____....._____....._____....._____....._____
Exception: Failed to connect to ESP32: Timed out waiting for packet header

Here is the dmesg output for context:

[621448.950856] usb 1-14: new full-speed USB device number 19 using xhci_hcd
[621449.100507] usb 1-14: New USB device found, idVendor=04d8, idProduct=f012
[621449.100508] usb 1-14: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[621449.100509] usb 1-14: Product: Pysense
[621449.100510] usb 1-14: Manufacturer: Pycom
[621449.100511] usb 1-14: SerialNumber: <snip>
[621449.101550] cdc_acm 1-14:1.0: ttyACM0: USB ACM device

Some additional notes:

• The WiPy3.0 has a blinking blue light.
• I was able to connect via telnet after connecting to the Wifi of the WiPy and got a REPL.
• VS Code w/ Pymakr gets stuck trying to connect via USB serial
• Tried two different quality usb to micro-usb cables with 4-pins.

Here's the output I got from telnet/REPL:

>>> os.uname()
(sysname='WiPy', nodename='WiPy', release='1.7.0.b1', version='v1.8.6-621-g12ee404e on 2017-05-25', machine='WiPy with ESP32')

Any ideas why I can't update the firmware or connect via USB/Serial?