Open Settings
Tap Apps
Select the app you want to clear the cache for
Tap Storage
Tap Clear cache
To clear browser cache:
Open Samsung Internet or your browser
Tap Menu
Tap Settings
Tap Privacy and security
Tap Delete browsing data
Select Cached images and files
Tap Delete
To clear system cache partition:
Turn off the phone
Connect the phone to a computer or USB-C headset if required
Press and hold the Volume Up button and Power button
Release when the Samsung logo appears
Use the volume buttons to select Wipe cache partition
Press the Power button to confirm
Select Yes
Select Reboot system now
To clear all app cache at once:
Open Settings
Tap Device care or Battery and device care
Tap Storage
Tap Clean now or Optimize now
Follow the prompts if available