# Access denied writing files on USB

**URL:** <https://forum.magicleap.cloud/t/access-denied-writing-files-on-usb/5331>\
**Category:** Unity Development\
**Tags:** development, unity, openxr\
**Created:** [March 12, 2025, 9:18am UTC](https://forum.magicleap.cloud/t/access-denied-writing-files-on-usb/5331 "2025-03-12T09:18:40Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![kbabilinski](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.magicleap.cloud/kbabilinski/32/19_2.png) [@kbabilinski](https://forum.magicleap.cloud/u/kbabilinski)\
**Post date:** [March 13, 2025, 6:14pm UTC](https://forum.magicleap.cloud/t/access-denied-writing-files-on-usb/5331/2 "2025-03-13T18:14:42Z")

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It sounds like you’re running into Android’s scoped storage restrictions, which got stricter starting from Android 10. Even if your USB drive mounts under `/storage/XXXX-XXXX`, Android often treats it as external storage, meaning standard permissions alone (`READ_EXTERNAL_STORAGE` and `WRITE_EXTERNAL_STORAGE`) aren’t enough.

I’d recommend looking at this repo **[UnitySimpleFileBrowser](https://github.com/yasirkula/UnitySimpleFileBrowser)** —it uses Storage Access Framework which should resolve the ‘access denied’ error you’re facing.

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