Hello Guys.
I wanted to let you know my opinion about MiBox S and flash drives.
Some months ago, I bought a MiBox S for my uncle and used his flash drive to put some APKs on the MiBox as they are not available on market. The flash drive got corrupted and it could not even boot anymore.
I thought that my MacBook adapter for USB Flash Drive did break it.
Today, I tried my own MiBox S and 128GB Storage to sideload again some APK, and the Flash Drive went corrupted and dead within some seconds of usage.
So, please ignore this product or at least do not use a flash drive on it.
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I never had problems with flash drives. Some flash drives can not be compatible with the box. Make sue the drives are formatted in fat32. Plus use a windows machine. Macs formats drives differently.