I uninstalled drivers and updated with CH340 latest driver also i am facing same issue, i selected ESP8266 Generic module code simple LED blink

Other Hardware 3rd Party Boards
1

. Variables and constants in RAM (global, static), used 28104 / 80192 bytes (35%)
║ SEGMENT BYTES DESCRIPTION
╠══ DATA 1496 initialized variables
╠══ RODATA 920 constants
╚══ BSS 25688 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 232148 / 1048576 bytes (22%)
║ SEGMENT BYTES DESCRIPTION
╚══ IROM 232148 code in flash
esptool.py v3.0
Serial port COM3

A fatal esptool.py error occurred: Cannot configure port, something went wrong. Original message: PermissionError(13, 'A device attached to the system is not functioning.', None, 31)

Hello,

I am facing an issue with my ESP8266 module. I selected the Generic ESP8266 Module in the Arduino IDE and uploaded a simple LED blink code.

To troubleshoot, I:

  1. Uninstalled the existing drivers.
  2. Installed the latest CH340 driver.
  3. Restarted my system and reconnected the board.

Despite these steps, the issue persists. Still above error is coming , i tried many times.

I am using:

ESP8266 Generic Module
CH340 Driver (latest version)

Any guidance on resolving this issue would be greatly appreciated.

Thank you.

2

I moved your topic to an appropriate forum category.
In the future, please take some time to pick the forum category that best suits the subject of your topic. There is an "About the _____ category" topic at the top of each category that explains its purpose.

You might want to look at this How to get the best out of this forum before you proceed any further.
We only know what you tell us, and without knowing what you have, we don't stand a chance.

In your case you posted in an "official products" section of the forum when you do not have an official product. Which is why I moved it here.

This is an important part of responsible forum usage, as explained in the "How to get the best out of this forum" guide. The guide contains a lot of other useful information. Please read it.

3

Dera Grumpy_MIke,
I am new to this Arduino forum, but in the future, I will select the most appropriate forum category.

1 Like
4

There's lots of people that had trouble with latest driver + Win 11. Use the search function of this forum and you get help.

5

I opened my serial monitor
in that it is showing as
Not connected : Select a board and a port to connect automatically
Even though i selected the board and port also

6

First of all, what OS do you use?

7

Windows 11,I have two esp 8266 modules , one is working all the devices ,
but one is not working, i changed my cable and ports also,for second one
Not connected : Select a board and a port to connect automatically

8

Are they same model?

9

yes same only , showing chips with WDH CH340 G and C

10

Did you uninstall the driver and get the older version?

11

@surya_221

and not ANY older versiion, but the one that is suggested in other threads here.

12

yes , tried this also

13

Try this: unplug the board, open Device Manager in Windows and expand Ports and LPT, plug in the board, does a new COM port show up?

14

So there is nothing wrong with the driver or your computer or the the Arduino IDE or the USB port or the cable.
So there is something wrong with that one board.
Did it ever work?

15

yes port is coming

16

Sir, this is new board ,now only i am working on it.

17

Can you select that port now in the IDE? Tools -> Port

18

Dear sir, i selected port correctly for me showing COM3, tried to upload the simple led blink example code.

but in my serial monitor
Not connected : Select a board and a port to connect automatically coming like this

Variables and constants in RAM (global, static), used 28104 / 80192 bytes (35%)
║ SEGMENT BYTES DESCRIPTION
╠══ DATA 1496 initialized variables
╠══ RODATA 920 constants
╚══ BSS 25688 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 232148 / 1048576 bytes (22%)
║ SEGMENT BYTES DESCRIPTION
╚══ IROM 232148 code in flash
esptool.py v3.0
Serial port COM3

A fatal esptool.py error occurred: Cannot configure port, something went wrong. Original message: PermissionError(13, 'A device attached to the system is not functioning.', None, 31)

19

Close serial monitor and try again.

Edit: Does the blink sketch runs on your ESP?

20

Dear Sir,
I closed the serial monitor disconnected and connected the board and tried again same , issue not resolved

Edit : Blink sketch not uploading at all