Nice to know such a tweak tool is in existence ... not of much use for me since the green light keeps blinking here.
I can rule out WiFi interference for sure - as you can see I opened the Delta top-down, and literally placed three computers on top: A laptop running Windows 10, another with Ubuntu 16.04LTS, and - out of curiosity - a Raspberry Pi3 running Ubuntu MATE. All of these said it connected to the Delta's AP but its green LED keeps blinking..
Btw., the latter's ARM7 architecture will not run any precompiled FS.
The picture shows the grade of intrusion I'm at ... looped a USB hub into the Delta as well as a HDMI-to-VGA and USB-to-Ethernet adaptor. I can fiddle with all files within - e. g. /boot/config.txt to adjust to monitor properties - but I'm not sure if this is going to get me somwhere useful.
Any advice on how to make the delta an ordinary WiFi client obtaining its IP through DHCP from my (192.168.1.1) router instead of behaving as AP with this IP by itself from within there? That would be fantastic since I got to print parts fast.