Help - K1C - hotend not removable

Help !
I have a problem with filament and hotend on a k1c
Please see pictures. I am unable to remove the hotend
What can I try ?

and I can’t remove the melted filament, that I can use a tool to remove the hotend

Hello, try to remove the radiator completely first and access to the screws will be better and it will be more convenient to repair.

  1. an option to try to unscrew the screws using pliers. 2) the option to unscrew the screw using the extractor.
  2. the option to drill out the screw head, remove the hotend and then unscrew the remnants of the screw with pliers. Hotend in any case for replacement the heater cannot be disassembled without damage.
    If these solutions do not help, then it is necessary to change the hotend along with the radiator. If this happens, take immediately modified as in the picture.