Flsun 3d Cube clogged extruder

Good evening all of you, i have a problem with the flsun 3d cube printer, the hotend gets stucked in every print, i tried to rise and lower the temp, i modified the retractions, i changed the entire extruder (currently with e3d v5) changed the motor driver checked the cooling fan, i cheked the steps per mm matches the real ones but nothing of this helped out and i am getting pretty desperate so far, any ideas of what i am missing?
Im usung Simplify as slicer soft btw.

Bad filament, or wrong type, eg expecting PLA, got ABS?

I changed the filament already, PLA all the time, same problem.

What temperature are you printing at, and have you got anyway to confirm the hot end temperature?

I started with the usual temp, around 210 degrees, then changed to 195, 200, 205, 220, 230, and nothing. I have a multimeter with a temp sensor and the temp is pretty much the same.

Morning, i solved the clogged extruder problem, thanks for the ideas .

But i have another issue now, im running SKR V1.1 with an MKS TFT3.2 inches display and this one is not communicating with the board, any ideas why?

Thanks in advanced.

you need both SERIAL and SERIAL_2 defined In your configuration.h. one is the usb serial the other is for the TFT screen.

The baud rate in Configuration.h must match the baud rate of the TFT

Thanks for the answer, i changed te serial port 2 to Serial port 0 and now it seems to work testing one motor. Going to test the rest.

Than you.