Seven months after placing my order I finally received a SLG4DVKDIP. Unfortunately, it does not work: a blue LED lights up but otherwise the board behaves as if not being connected to the host's USB port at all, dmesg (Linux) is completely silent, that is, even the D+ pull up does not work. What shall I do?
Could you try another PC with a different operating system to double-check if the board is damaged?
Working from the SLG4DVKADV schematic and the observed behavior, I assume that the STATUS LED on the SLG4DVKDIP corresponds with the P1_STATUS LED on the SLG4DVKADV and indicates that VBUS is high enough. The other LEDs on the SLG4DVKADV are controlled by the MCU, so is probably the POWER LED of the SLG4DVKDIP.
Please refer to the supplier to replace the board.