L5 ii e450j brick

hello, try to unlock the bootloader of my lg e450j with unlocker of the page, did not say that was tested in version J but if it worked in some and not in others, running the .bat restart the phone and stayed in black and now switches itself vibrates like trying to start but nothing happens and the PC is switched on and after 3 seconds disconnect so I can not use the LG support, some solution, the phone is very important for me, help .

Thanks in advance

PS does not go into emergency mode :crying::crying:

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