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Galaxy S8’s fourth Android Oreo beta disables use of third-party docks with Samsung DeX

July 08, 2025

TheGalaxy S8 and S8 Plusmight be more known for their near bezel-less designs, but one feature that isn’t nearly as talked about isSamsung DeX, which turns the phone into pseudo-desktops. Unfortunately for those who found the feature useful, the fourth Android Oreo beta prevents it from working with third-party docks.

According toXDA Developers, users are reporting that, when they connect their devices to third-party docks, Samsung DeX no longer pops up. Instead, connecting their Samsung smartphones to these docks only mirrors the smartphone display.

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This is an interesting change, seeing how usingSamsung‘s official DeX dock was not the only way to get the feature up and running. For example,back in September, someone turned a 2008 MacBook Pro into an almost fully-functional DeX laptop. Also, folks found out that they could connect the Galaxy S8 to the HP Elitebook X3, which was made to work with HP’s Elite X3 smartphone, and have Samsung DeX work just fine.

It’s a somewhat depressing move on Samsung’s part, seeing how the company has also prevented folks from remapping the Bixby button. I understand that Samsung wants to sell as many DeX docks as possible, but if you want as many people as possible use the feature, why hinder the ability to do so?

XDA Developersbrings up the point that HUAWEI’sMate 10 and Mate 10 Prooffer aDeX-like featureof their own, except that the phones do not require the use of a dock to make it work — all you need is a USB 3.1 Type-C cable. Maybe we’ll get to the point where Samsung doesn’t require a dock to have DeX work, but until then, I will continue to frown.

Of course, Samsung can change its mind once the final Android Oreo release rolls around, though we’ll keep an eye out if that’s the case.

Do you use Samsung DeX with your Galaxy S8, S8 Plus, or Note 8? If you do, do you find the feature useful? Let us know in the comments below.

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