Sure, there is not the USB but i see that there are pins for GPIOs and GND 5V / 3v3 so i think that soldering pins are Alright to flash and then to power on :-) Have an issue concerning this task? Enroll in a free GitHub account to open https://omg-directory.com/listings12719749/not-known-details-about-%E6%B3%A2%E5%9C%BA%E6%B5%8F%E8%A7%88%E5%99%A8%E4%B8%AD