Solved: CJ79 USB Hub Not Working - Samsung Community

useruwJoH5jQYb · ‎01-16-2020

I just got the CJ79 34" Monitor. I connected the given Thunderbolt 3 cable from the monitor to my Laptop's USB-C port and the video display shows up fine. However, when I connect peripherals like a wireless mouse to the Monitor's USB-A ports, the monitor does not act as a USB hub as advertised, even though the 'USB Hub' mode is on

SamsungLarry · ‎04-26-2020

If all the troubleshooting from this thread has failed, I recommend getting the monitor serviced. You can do this by sending your full model code and serial number via private message or calling 1-800-SAMSUNG directly.

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SamsungLarry · ‎01-16-2020

Just to doublecheck, have you updated your software recently?

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useruwJoH5jQYb · ‎01-17-2020

Hi Samsung Larry. If you mean the software on the monitor, then the answer is no. I encountered the problem right out of the box.

SamsungLarry · ‎01-17-2020

I recommend giving the device an update.

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useruwJoH5jQYb · ‎01-18-2020

Hi Samsung Larry,

I checked the manual on how to do the software update. It instructed me to unsert a 'USB Disk'. My monitor didn't come with any USB Disk, and there is no other information on what is is or alternate means to do the software update.

SamsungCaleb · ‎01-18-2020

Are using a USB2.0 wireless mouse? Also to update the firmware you would need a USB 2.0 Stick and would need to download the firmware version manually and then manually install it.

You can use this link to find the new version: https://www.samsung.com/us/support/owners/product/thunderbolt-3-ultra-wide-screen-j791

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useruwJoH5jQYb · ‎01-20-2020

Hi Caleb,

I tried to download the firmware, but I could only find the file 'C34J79xWT.exe' at the link. The manual (screenshot below) says that for the upgrade to work, I need to ahave a file that has the extension '.bin' Please advise. Yes the mouse is USB 2.0

C34J79xWT.

SamsungCaleb · ‎01-20-2020

My apologies for the confusion, did you run the .exe from the link it will be the drivers for the monitor.

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useruwJoH5jQYb · ‎01-20-2020

Yes, I tried several times. Still no success.

I got the screen below and made a selection with the "Thunderbolt" option. I got a notification that the manual driver was installed, but my peripherals still do not work.

userrErvhTmTF4 · ‎04-03-2020

Hi Samsung Support,

I am having the same issue, the USB hub is not working on my CJ791 monitor when connecting to my Samsung laptop. I downloaded the driver as outlined. Please advise on where to download the monitor firmware if that is what is required to get the hub to work.

Original topic:

CJ79 USB Hub Not Working

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