Neo Coolcam NAS-WR01W-16A stuck on intermediate firmware

Hi,

I while ago I used tuya-convert successfully on 2/3 neo coolcam's, the one left out I thought got bricked. Now six months later when I looked more into the problem, I see now it is stuck on the intermediate firmware as the device button unresponsive.

I have been trying to check the wiki and earlier issues without understanding what my next step is. I tried the npm package (from https://github.com/ct-Open-Source/tuya-convert/issues/472) but got the following error:
{ Error: connect ECONNREFUSED 192.168.4.1:6668
at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1113:14)
errno: 'ECONNREFUSED',
code: 'ECONNREFUSED',
syscall: 'connect',
address: '192.168.4.1',
port: 6668 }

Logs attached. any help?
[logs.zip](https://github.com/ct-Open-Source/tuya-convert/files/4937243/logs.zip)