MSC Mode? (Required for deleted-file recovery)

[cPT.cAPSLOCK]

Heya, thanks for reading.

I'm having a VERY big problem:
I accidentally deleted some important files from my device (not from the firmware, but some documents I need for school).

Is there a way I can put it in some kind of MSC recovery mode, so that it appears with a drive letter on my PC?
If that's possible I might be able to recover the files.

If that's not possible, does any of you know if there is recovery-software available for MTP devices? I did a quick google but couldn't find it.

Thanks in advance!

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