i am using node mcu with cp2102 driver , i am using arduino ide software
every thing were ok, and the sketch compiled successfully, but the issue occur in uploading
it give me this error : espcomm_upload_memfailed
the usb cable is ok and give me the com
i tried to reset it by pushing on the flash button by the correct way as described in vedio
without success
the error still arise
help me please

This is not a Blynk error or issue. I would suggest you Google it.