9GB of System and User Data on Samsung Galaxy J2

[Android Central Question]

I have a Samsung Galaxy J2 that has 16GB of internal storage, but 9 of it is being used as "System and User Data." What exactly is taking up that space, and if it's system files, can I free up some space without factory reset or rooting the device?

 

[Laura Knotek]

System files could take up to 5-6 GB. https://forums.androidcentral.com/showthread.php?p=6413449

 

[greenwitcher]

Gatta know: is there a way to check to see if it can/needs cleaning?

 

[Laura Knotek]

Your best option is to use an SD card for your user data, such as photos, videos and music. You won't be able to alter system files without root, but I wouldn't recommend rooting the device, since it is possible to alter important files that if altered might turn your phone into a paperweight.