Is there anything I should be aware of when using DeX mode with a Galaxy device? (Updated February 6, 2026)
Please see the following for notes on using DeX mode.
When screen sharing
If your monitor or computer screen is the same display as your device and does not switch to DeX mode, please check your settings.
For Samsung Galaxy series smartphones
1. Open Settings on your device.
2. Select Connections.
3. Select More connection settings.
4. Select HDMI Mode and make sure it is set to Samsung DeX.
For Galaxy Tab series Tablets
1. Pull down notification bar.
2. Pull down a second time to fully expand it.
3. Tap Samsung DeX on the Quick Panel to make sure it is enabled.
Smartphones: Transferring Settings
When using DeX mode on a Samsung Galaxy series smartphone, the interface will change from smartphone to tablet mode.
Since the following settings will not be applied after connecting, please reconfigure them after switching to DeX mode.
・Command Bar Settings
・Selection Launcher Settings
Note: Even after disconnecting from DeX mode, please reconfigure these settings.
The interface is displayed as the smartphone version in DeX mode (February 6, 2026)
On January 29, 2026, the following problem has been corrected in Clip Studio Paint Ver.4.2.6.
- DeX Mode Displays the Smartphone Interface on One UI 8 Galaxy Devices
Please update your software from the link below.
Galaxy Store
Google Play
"Show canvas on external monitor" cannot be used in DeX mode (October 30, 2025)
We have confirmed that Show canvas on external monitor may not be available when using DeX mode on Galaxy devices with One UI 8.
We plan to fix this problem in a future version.
Smartphones: Connecting to a computer
Galaxy devices with One UI 7 or later cannot connect to a computer and use DeX mode.
See the following page for more information.