Pcb layout wireless shell

Hello this s my first post and request for help.
please have a look at my schematic, it is based on the sample design provided by heltec
but when i plug it in i get nothing, please give me a hint

thanks Volker

Do you check voltages from your power rails ?

Hi Alex,
voltages are there 5v from usb , and 3.3 after regulator, battery charging works, i can not get the pc to recognize the usb com port when pluging in. my guess i made some stupid wiring mistake and i need fresh eyes to see it, i’m blind after looking for hours.

please compare mine to this , the reference design, sorry could not upload document

I will check your design. Do you have usb activity on the console ?

no , no activity, today i will change usb to com chip