Default Serious issue

i urgently need help
I got some update from lg and after i agreed to install
phone doesn't boot
it goes into TWRP recovery
i tried putting it on download mode but its not happening
I tried hard resetting too
i deleted data and hence i dont have any files on my internal storage
I dont have a OTG cable .
pls help me out
i cant use terminal command also because there are no files in recovery folder
[SIGPIC]