Zwa-2 wont install portable zwave

Configuration Z-Wave
1

I bought a second zwa-2 to test with so I could leave my original zwa-2 as is. I have tried to install the portable zwave through chrome on my macbook and my windows box and it connects to the zwa-2 and goes into bootloader but after that step it always errors and says "ESP firmware update failed
The ESP firmware update could not be completed.

Failed to execute ‘setSignals’ on ‘SerialPort’: Failed to set control signals."

I have tried multiple usb-c cables and clearly multiple machines, I realized it was on the old firmware so I updated it to 1.1 and that worked just fine. Anyone have any tips?

2

I am having the same exact issues. I bought a second ZWA-2 and cannot get the ESP firmware to update. I have also tried with multiple PCs and cables.

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3

Same here (though I’m brave/stupid enough to try with my one and only ZWA-2). Multiple computers/browses/cables, ensured uBlock is disabled, etc.

4

Well it’s nice to know I’m not insane or an idiot but I do wish someone from HA would be able to chime in and have a fix. Thankfully I took a week off for the holiday but wanted to work on this while I had the time off too.

5

Quick question for all of y’all… were you using Windows to flash these ZWA-2? Is it possible to try to use Mac or Linux to flash these - some early firmwares have an issue with being flashed with Windows. A VM, WSL, or Linux Live CD should probably work.

6

Thanks for the suggestion but I have also tried my new MacBook Pro running 26.1 and chrome. Same issue :(.

7

Same here on MBP 26.1

1 Like
8

I don’t have access to Windows. I’d love to use Linux … better yet, directly from HA-OS or ESPHome Builder … but that seems to need a GUI and all of my linux boxes are headless.

My (failed) attempts have been with the latest MacOS (Apple Silicon) using both Chrome and Safari.

9

Try these steps out, there’s something going on with your ZWA-2 that’s preventing it from allowing the ESP to be flashed. Bridging some pins inside the device should allow flashing (and means you shouldn’t have to take it apart the next time you flash it).

  1. Unplug the USB cable. Take off the antenna, take out the rubber feet, and unscrew the four screws on the base.
  2. Take the board out, then using a short piece of wire, bridge GPIO0 (pin zero) and GND (ground). See the attached picture.
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  3. Plug it back into a device capable of running the toolkit website and flash the latest firmware (or portable Z-Wave). Follow the steps provided by the flasher (connecting to Wi-Fi etc).
  4. Remove short piece of wire, and reassemble once it appears on your Wi-Fi.
  5. Profit
1 Like
10

This 100% worked, thanks so much for sharing this!!!

11

That got me half way there. Now I am getting an error when trying to set up the wifi.

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12

Thanks so much for this fix. It worked perfectly first time. Thanks to Ashton in Support for pointing me to it.

13

I believe this is a known issue with the Wi-Fi setup, just retry the process until the wi-fi credentials are accepted.

14

It worked after a few tries. Thank you!

15

I can’t seem to get past the failing wifi fail. Many retries with and without the wire jumper. Any advice?

16

whew - switched from chrome to edge and it work after 3rd try.