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  1. Sorry you all for waiting too long before coming back. It seems the problem disappears after I rewrite the PYNQ image on the SD card. I should close this question.
  2. @bklopp The problem seems to be the PuTTY. I just tried with Tera Term and it works. Now the serial port works, but I cannot connect to the board with the Ethernet interface. I just want to use Jupyter Notebook so that I can run code from the browser.
  3. I check the sequence of LED light. I am quite sure the system has booted successfully. (But you are right that we don't have to wait until it has booted.) About the serial terminal, the PuTTy window just doesn't proceed when I clicked "Open".
  4. The problem still persists. I have tried almost all the ways to connect directly with serial port: - Rewrite the PYNQ-Z1 Image v2.3 - Try on both Ubuntu and Windows with Putty I also noted the previous bug about COM10 port on Windows but still unable to connect with the workaround. So I tried to assign static IP to my PC and connect to on the browser (with the Ethernet cable now connected directly from PYNQ-Z1 board to my PC). My PC has both Wifi and Ethernet interface. I am not sure if this is the problem. But what I did is, in Ubuntu 16.04 LTS, I turned
  5. So I want to connect the PYNQ-Z1 board directly by opening a USB serial terminal. The PYNQ-Z1 board is bought with the pre-loaded image in the SD card. The board setup is the following: - Connected with external power adapter - Port J14 UART is connected to USB port on the laptop I waited until the system is booted and ready to use, opened the PuTTy on laptop, set: - Serial port: COM10 <--- I checked in the Windows Device Manager. - Speed (baud rate) : 115200 - Data bits : 8 - Stop bits : 1 - Parity : None - Control flow : None But when I cl