My S24 recently got the one UI 7 update since the update I'm unable to use my S24 with my display dongle. Now the dongle has other peripherals, including SD card, micro SD card, Ethernet and USB2 and three ports. All of them seem to be working fine with the S24. The only one I'm having trouble with is the HDMI.
Now I would write this off as it defective display adapter or HDMI cable but I was using this same adapter with my phone before the One UI 7 upgrade; not to mention I also have an S22 and a galaxy tab S8 and those two devices, even after the One UI 7 update still function completely fine with the display adapter, not to mention super fast charging works fine too.
I tried calling Samsung, who just told me to go to the closest repair shop to my house, The repair shop technicians had no idea about decks or how external displays even work with these phones. I actually had to bring my tablet and show him how it works with an external display. They had never seen it before and had no clue how to diagnose my problem.
Now Dex is an important feature for me, primarily because I don't like traveling with my laptop so, having the ability to use your phone as a laptop is quite helpful and I normally do this when I'm out and about or working out of a client's sites.
I have heard of other people having this issue, but no one has actually posted anything on Samsung website. Anything to do with like troubleshooting steps or work around. So I'm opening a new topic. Hopefully we can help each other out and hopefully someone can provide a solution that can help me and other people having the same problem.
If the issue keeps going, a cache partition wipe could make a bigger difference without wiping your data.
Turn off your phone. Press and hold the Volume Up + Power buttons at the same time. When the Samsung logo appears, release both buttons. Use the Volume Down button to scroll to “Wipe cache partition.” Press the Power button to select it. Scroll to Yes and press Power again. Once done, scroll to “Reboot system now” and press Power to restart.
This does not erase personal data, only temporary system files.
