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OBB folder changed to unknown file type.

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Android Central Question

So for some reason my OBB folder sometimes changes too a unknown file type and when this happens my apps that need data from the OBB folder don't work . And some times the folder comes back to normal again . Can someone please explain why and how to prevent this.


New member
Feb 20, 2018
Same with me.
The obb folder disappears from my phone and turns into an unknown file.
The file however is not visible on Samsung's File manager so I used ES File Explorer to delete the obb file and create a new obb folder, everything was fine for a while but then it disappeared again. It's really frustrating.


Trusted Member
Aug 5, 2015
Which phone?
Which version of android?
Which carrier?
Is the folder located on the internal storage or an SD card?