ESP8266 Community Forum

- Wed Jul 20, 2022 5:32 am #94960 Hi. I have a new NodeMCU v3. I`m trying to flash it with ESPLorer/PyFlasher/ESP8266Flasher/Arduino IDE. But nothing happend. In ESPLorer crashing when im trying to open COM port. PyFlasher and ESP8266 stucks on connect. In Arduino IDE i have this error

Code: Select allesptool.py v3.0
Serial port COM11
Connecting....Traceback (most recent call last):
  File "C:\Users\Seeroy\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2/tools/upload.py", line 66, in <module>
    esptool.main(cmdline)
  File "C:/Users/Seeroy/AppData/Local/Arduino15/packages/esp8266/hardware/esp8266/3.0.2/tools/esptool\esptool.py", line 3552, in main
    esp.connect(args.before, args.connect_attempts)
  File "C:/Users/Seeroy/AppData/Local/Arduino15/packages/esp8266/hardware/esp8266/3.0.2/tools/esptool\esptool.py", line 519, in connect
    last_error = self._connect_attempt(mode=mode, esp32r0_delay=False)
  File "C:/Users/Seeroy/AppData/Local/Arduino15/packages/esp8266/hardware/esp8266/3.0.2/tools/esptool\esptool.py", line 499, in _connect_attempt
    self.sync()
  File "C:/Users/Seeroy/AppData/Local/Arduino15/packages/esp8266/hardware/esp8266/3.0.2/tools/esptool\esptool.py", line 438, in sync
    timeout=SYNC_TIMEOUT)
  File "C:/Users/Seeroy/AppData/Local/Arduino15/packages/esp8266/hardware/esp8266/3.0.2/tools/esptool\esptool.py", line 376, in command
    self.write(pkt)
  File "C:/Users/Seeroy/AppData/Local/Arduino15/packages/esp8266/hardware/esp8266/3.0.2/tools/esptool\esptool.py", line 339, in write
    self._port.write(buf)
  File "C:/Users/Seeroy/AppData/Local/Arduino15/packages/esp8266/hardware/esp8266/3.0.2/tools/pyserial\serial\serialwin32.py", line 325, in write
    raise SerialTimeoutException('Write timeout')
serial.serialutil.SerialTimeoutException: Write timeout
.


But i can open COM port in PuTTY (on 74880) and see boot logs (its good)
Help me please, how to flash it!

- Thu Aug 04, 2022 6:37 am #95026 Hi, have you done the board installation part correctly?