Clearing System Cache

If you have problems or bugginess with your tablet or smartphone, often those problems will be solved by wiping the system cache. It's a very simple and short procedure. You don't even need to do a hard reset. In fact, deleting the system cache will NOT delete any of your personal info, but only the background and application cache. Cache is stored data on the phone which allows apps to load quicker, it's like the data is on standby until you need it again. Wiping it simply means that the app will have to reload the data. How wiping the cache is done varies by device, but you can usually find out how easily by typing "[Device Model] clear the system cache" into The Google without the quote mark:

Here's how it's done on a Samsung Galaxy S3:

Turn off phone
Remove the battery and reinsert.
Hold down the Home and Volume Up keys
Press and hold the Power button while still holding the other keys.
As soon as you see the Samsung logo, release all keys/buttons.
Press on the Volume Down to scroll down to Wipe Cache Partition.
Press the Power button to select it.
Press the Volume down button to highlight "Yes" and press the Power Button to select it.
Wait for a few minutes for the phone to clear the data.
Then press the Power button to select reboot system now.
Wait for your phone to reboot.

PS: There also usually is a setting for clearing the app cache, such as Settings/More/Storage/Cache.

PPS: Here is a similar suggestion for iPhones: Link to cnet Piece re iPhone