Samsung galaxy tab s9 WiFi

[Bev54]

Is there any way to clear the whole cache at once? 

[AndrewL · Accepted solution]

@Bev54: There is indeed. Please start by powering off the tablet, then press the Power and Volume Up buttons together until the Samsung logo appears on screen. Release the buttons at this stage, and you should see a Recovery Mode screen. Using the Volume Down button, scroll to Wipe Cache Partition, and hit the power button to select it. Select 'Yes', then scroll to Reboot System Now on the Recovery Menu, and tap the Power button.

Please note that you may need to connect the tablet to a home computer via USB cable in order to complete the steps above. Let me know how you get on.

[Bev54]

@AndrewL i Googled it before and it said it wasn't possible with this tablet, just goes to show you they don't know what they are talking about.
I did it on my Samsung galaxy A13 last night and it worked perfectly