You can try system recovery method it may work or fail
Thanks for your work I managed to revive my p20, the error was in my router since the dns server had changed.
I will make root for it and post instructions after.
I will wait for your work and thank you in advance.
I'll make a root for it, came up with a universal method for LG. Reply if interested.
I'm interested tell me how it is done..my model is x230z