USB storage write-protected issue

So I was about to play on my xbox 360 :3, but when the logscreen appeared there where no accounts. I checked my external hard drive (not the xbox one, a hitachi HXSLMA), but when I tried to open it, a message appeared saying that it was "write-protected". Could you tell me how to solve this? P.S: I'm using a Mac (running OSX 10.7.5) so if you find any useful app for this let me now!

 

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Last updated July 4, 2018 Views 4 Applies to: