Factory reset does not clear device log in password

Have a problem with the device, caused by a problem with the Firefox browser on WIndows 10, which locked up during updating of settings like phase names.

I set a log in password, and normally, the password manager asks me to save the password as part of automatic processing. Due to a problem with the cursor not scrolling the screen in Firefox, the browser crashed, and the password was not saved into the password manager system, and was also lost from the keyboard buffer, so not available to paste into another location to make a copy.

I have tried both a reset to factory settings, and a power down of the device, and neither option is clearing the requirement to log in to the device, so effectively it is bricked. The AP is available, and can be connected, but on access to the Web Server, it requires a log in. The Shelly app crashes when trying to add the device to the WiFi network, and it's not possible to get into the web server on the 192,168.33.1 address.

This is the second problem I've had, the first was an issue that a firmware update did not complete correctly, and the only (eventual) recovery was to power down the device, after that, it was recovered, and the AP could be found.

I can't see any information on how to recover this situation, the reset from the front panel as such is working, but the device is not clearing the password.

Tried multiple resets as above, and also full power down of the device, as well as a couple of possible default passwords that were suggested by Shelly support, and unfortunately, none of them work.

What's the best route to report issues with the interface and browser combination, as that was a prime cause of this problem.

yes, I've already had a response to the support ticket, they are asking me to ship the device back to them, but the costs for shipping it may be a problem.

The reason for the fault, which I wll have to address in a separate thread, the web browser crashed firefox while I was updating the device, which then caused the automatic password save to fail, and it was no longer in the keyboard buffer to be pasted into another application to allow it to be saved. There is a problem with mouse scrolling in Firefox, so the app hung, and also a problem with the front page, which prevents a password from being posted into the device log in from Shelly Cloud, and that app also did not auto save after it was used, which I will have to report to the password app provider, as that is a new issue that has not been seen before, but I cannot determine which app is the problem, it may be last pass, or shelly cloud that's causing the issue, and then of course made worse by the inability to reset to fully accessible factory condition, in that the reset does not clear the password from the device.

That issue alone really requires a firmware update to clear it, or some form of fix, as it has the potential to disable many devices in the event of an error, and it seems that the software associated with the device is somewhat fragile still.