Device not recognized on MacOS Sequoia 15.0.1

[JanVlcek]

Hi, I migrated to new macOS Sequoia and then connection with my ESP32-S3-Wroom1 stoped working. Now when I install your CH32X driver I still can see it installed. I have only /dev/tty.usbmodem578E0051031 as before installation. When I trying to upload code from Arduino IDE to ESP32 this error occurred "A fatal error occurred: Failed to write to target RAM (result was 01070000: Operation timed out)".

Can you please help me?

Thank you!

[eliswee]

same

[AnthonyPhan]

Does not work for me either :(

[submac]

+1.
The new installation does not work on Mac OS Sequoia 15.1.
/dev/ does not show any related device.

[bwjohns4]

Same...

[t3q]

I'm having issues with installing drivers at MacOS 15.1.1 (24B91). After pressing on "Install" button, kext are note visible in /Library/Extension. I've tried also with brew reinstall --cask wch-ch34x-usb-serial-driver but the same result.

In /dev i see only:

/dev/tty.usbmodem54340237681

[catz-meow]

Same issue here. I followed instructions with no luck

[t3q]

A little update here: I finally managed to get it working. I had to find and add permissions to the app, after which the app installed the drivers. Something has changed in the newer releases of macOS, and the permissions are far more complex than the documentation describes.

In the screenshot, you can see /dev/tty.usbmodem54340237681, which is visible every time the device is plugged in. After the device is installed, /dev/tty.wchusbserial54340237681 becomes visible, and RTS/DTR can be managed from my software.

[catz-meow]

Can you describe what you mean by find and add permissions?

[t3q]

Can you describe what you mean by find and add permissions?

Try looking under Settings -> Security & Privacy. If I recall correctly, it was something with "CH34x" or "WCH" in the name. I tried to find the exact name again, but... I couldn’t find it 😄. Maybe it’s no longer needed after an update? I’m not sure. Below, you can find a screenshot of the installation app—it works every time for me now.

What do you see when you press "Install"? Can you post a screenshot?

[catz-meow]

So I follow the instructions and double click the DMG file. I get this

I drag the CH34xVCPDriver to my applications. Then I open the application

Nothing happens when I click install

I tried adding some permissions to the app by going to settings > Privacy & security > full disk access, then clicking "+". that didn't seem to change anything

I'm wondering if there are any other area's to add the app to as far as permissions?

[t3q]

I believe that the required permission is for the KEXT (Kernel Extension), not for disk access. I did not manually add any other permissions.

[t3q]

Ok, try something different. Remove everything, restart your Mac, then try:

brew reinstall --cask wch-ch34x-usb-serial-driver

When you press install, you should see messages in the app. Then, try to check for permissions. Maybe this way...

[catz-meow]

the install was successful, but nothing happens when I click install from the application

[t3q]

Try looking for permission in security & privacy. If not found, try reboot and then again.

[t3q]

I remember that I also installed another driver for FTDI chips at the same time—they have a similar mechanism. That’s when I also saw this setting.

If you don’t find it, give it a try—maybe it’ll work.

FTDI VCP Driver

[Yeharold]

Hi, I migrated to new macOS Sequoia and then connection with my ESP32-S3-Wroom1 stoped working. Now when I install your CH32X driver I still can see it installed. I have only /dev/tty.usbmodem578E0051031 as before installation. When I trying to upload code from Arduino IDE to ESP32 this error occurred "A fatal error occurred: Failed to write to target RAM (result was 01070000: Operation timed out)".

Can you please help me?

Thank you!

I solve this problem by following step

open CH34x app，click install ，it‘ll work

[pauljickling]

I also am having no luck installing the driver on 15.1.1

Unfortunately none of the suggestions here have worked for me.

[t3q]

Can't help you without any feedback with details from you.

[motianjun4]

Enabling extensions in Login Items & Extensions -> Driver Extensions works for me!

[Ben-Tai]

Enabling extensions in Login Items & Extensions -> Driver Extensions works for me!

This worked for me. Enabled the driver extension and now then install was successful and can now see /dev/tty.wchusbserial in terminal. Thank you very much

[catz-meow]

This worked for me too, thanks!!

[pauljickling]

I can also confirm this works!

[sensorhost]

Third one here to confirm it works too!

[wsturner88]

Enabling extensions in Login Items & Extensions -> Driver Extensions works for me!

THIS ONE APPEARED TO WORK FOR ME

[technodict]

Enabling extensions in Login Items & Extensions -> Driver Extensions works for me!

works well ! funny thing you get this "install success" pop up the number of times you had clicked the install button earlier apparently :)

[kamikaze2112]

Enabling extensions in Login Items & Extensions -> Driver Extensions works for me!

This worked for me as well on Sequoia 15.2, M4 Pro MacBook Pro.

Thank you, I don't have a whole lot of hair left to pull out trying to get this working ;)

[seeid10t]

I can confirm that none of these suggestions worked for me.

[tgulikers]

Hi all,

I am on a Macbook Pro M4 on OS X 15.2 and the suggestions above are not working for me.

• re-installed the driver multiple times (restart afterward)
• Indicates that the driver install is successful
• Confirm that I can see the extension in the settings
• USB device still not appearing in my settings.

Any suggestions what else I can do?