ESP8266 Community Forum

- Fri Mar 31, 2023 12:18 pm #96166 Hello,

I bought a ESP8266 LoLin new NodeMcu V3 recently for a uni project with the ch340g.
I am having trouble to upload. I am up to date with the drivers and also with the firmware.
I also checked with the AT commands AT and AT+GMR.

"20:12:18.150 -> AT

20:12:18.150 ->
20:12:18.150 -> OK
20:12:19.462 -> AT+GMR

20:12:19.462 -> AT version:1.1.0.0(May 11 2016 18:09:56)
20:12:19.462 -> SDK version:1.5.4(baaeaebb)
20:12:19.462 -> compile time:May 20 2016 15:08:19
20:12:19.462 -> OK
"
The code that i am trying to upload is the simple blinkwithoutdelay from examples.

The error is
"A fatal esptool.py error occurred: Cannot configure port, something went wrong. Original message: PermissionError(13, '��� ������� ��� ����� ����������� �� �� ������� ��� ����������.', None, 31)".

I looked and did many things that's being said in previous posts and in yt or arduino forum but with no luck.

-------------------------------------------------------------------------------------------------------------------------------------------------------------------------
. Variables and constants in RAM (global, static), used 28088 / 80192 bytes (35%)
║ SEGMENT BYTES DESCRIPTION
╠══ DATA 1496 initialized variables
╠══ RODATA 920 constants
╚══ BSS 25672 zeroed variables
. Instruction RAM (IRAM_ATTR, ICACHE_RAM_ATTR), used 59667 / 65536 bytes (91%)
║ SEGMENT BYTES DESCRIPTION
╠══ ICACHE 32768 reserved space for flash instruction cache
╚══ IRAM 26899 code in IRAM
. Code in flash (default, ICACHE_FLASH_ATTR), used 231796 / 1048576 bytes (22%)
║ SEGMENT BYTES DESCRIPTION
╚══ IROM 231796 code in flash

esptool.py v3.0
Serial port COM1
A fatal esptool.py error occurred: Cannot configure port, something went wrong. Original message: PermissionError(13, '��� ������� ��� ����� ����������� �� �� ������� ��� ����������.', None, 31)



Thanks in advance..

- Sat Apr 01, 2023 9:09 pm #96170 So, you are done with the board installation process and also have installed the CH340 driver. So, there must not be any problems. You can change the cable. If it's not a bad cable, then it's a bad board most probably.

- Sun Apr 02, 2023 3:13 am #96172 the cable is good cause i used it to an old phone for transmitting data. I will take a new esp8266 probably.

thanks for the reply,
Giannis