I've installed a russian rom, and on usb burning tool unselected "erase bootloader".
Rom was successfully installed, but now i cant install a new one, (don't like ATV version).
Can't connect to usb burning tool, and using the method SD Card also don't work.
I think i've messed up with bootloader, and can't find a solution for my problem.
Already tried shunt pins in mask mode, but don't work also. Rom boot normaly ignoring sd card and usb burning tool.
I have acess to twrp booting from an app.