So I modified this file /etc/dbus-1/system.d/dnsmasq.conf .

It worked fine and smoothly. Now today, my phone died while I was asleep because of very low power and was causing REBOOT LOOPS. Nonetheless I managed to bring it back to life via R&D Mode. Reverted the changes I made to dnsmasq.conf. Then disabling the R&D Mode and going back into Production mode removed the bootloops.

Now whenever I want to make changes to dnsmasq.conf again and When I reboot the phone, it goes into bootloops again.

Somewhere I read that proper signing of REFHASHLIST is required.

Found this refhashlist patcher by coderus Here.

But how to use it AND do I need inception/openmode to sign the list?