How to update on GBS-C ?

[Yukinooooooo]

I can't update my GBS-C with ESP8266 but apparently my GBS-C is not recognised on my PC and also the serial COM port is not listed, I don't know why. How can I do ?

The error message provided by Arduino

I've tried lots of micro usb cables but it's a failure. It's impossible to get COM for the serial port. I've even tried using other PCs, it's still a failure

but I did follow his instructions on Software Setup

I use this model New-GBS-C

EDIT: I'm using under GNU/Linux

[ramapcsx2]

Oki, to help you single out the problem, it is definitely the OS and the USB cable / adapter. It might be simply lacking a driver, or it is defective. Get this adapter cable working first and then continue with connecting to the GBS.

[YoImLee]

Looks to me like you're running into permission issues. Try running ls -l /dev/ttyUSB0 (with the ESP plugged in) in a terminal to see what group it belongs to, then adding your Linux user to the group, usually dialout or uucp depending on your distro. sudo usermod -aG (groupname) (username)

You'll need to log out or reboot for it to take effect.

[Yukinooooooo]

Looks to me like you're running into permission issues. Try running ls -l /dev/ttyUSB0 (with the ESP plugged in) in a terminal to see what group it belongs to, then adding your Linux user to the group, usually dialout or uucp depending on your distro. sudo usermod -aG (groupname) (username)

You'll need to log out or reboot for it to take effect.

The result is crw-rw----. 1 root dialout 188, 0 Jul 22 00:30 **/dev/ttyUSB0** from ls -l /dev/ttyUSB0

I also did sudo usermod -aG mygroupname myusernamethen I restarted my PC but that didn't change anything, the problem is still the same

[Yukinooooooo]

Oki, to help you single out the problem, it is definitely the OS and the USB cable / adapter. It might be simply lacking a driver, or it is defective. Get this adapter cable working first and then continue with connecting to the GBS.

However, VCP Drivers or CP210x is already installed on Linux.

My Micro USB cable supports Sync & Charge, Plus, I bought it new.

Do you think my new GBS-C is defective? Could it be? It is recognised on my PC with the serial USB port, not COM.

[YoImLee]

The result of the first command shows that you want to add your user to the dialout group so the command would be sudo usermod -aG dialout yourusername.

The fact that your device shows up as tty instead of com is normal on linux.

[Yukinooooooo]

It works better than before but I have another problem after connecting....

It doesn't always show the COM serial port but the new serial port is S4

[YoImLee]

What happens when you select ttyUSB0 instead?

[Yukinooooooo]

What happens when you select ttyUSB0 instead?

You really are a genius, I'm not exaggerating. You really saved me. Thanks

I have another question if you don't mind, how do you connect the GBS-Control Wi-Fi to get the GBS-C interface after doing the Hard Resetting via the RTS pin...?

[YoImLee]

After the first succesful flash your ESP should be in access point mode. You should be able to connect with for example a phone using the default password qqqqqqqq. Open up the browser on your phone and go to http://gbscontrol.local Then you can optionally connect your ESP to your main wifi from the GBS-C interface.

[Yukinooooooo]

Now it's working. Thanks again for your help

[nyanpasu64]

Closing as completed. If you have any further questions, send a reply to have it reopened.