I got exactly the same problem, ive tried to update it by usb in safe mode but finished the same way, blue blinking light and no screen
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I got the same problem here, after updating my PS4 IT crashed down, couldn't quit the safe mode saying i need to put the 7.00 update by usb wich i did and after i came to the same problem, Blue blinking light and no screen, still no answer yet please?