How to use external storage to expand unexpandable Android phones

That’s a bummer, as expandability has long been one of the big advantages of an Android phone over an iPhone. (The other is a removable battery, which the One also lacks, but that’s a topic for another day.) Does that mean owners of slotless Android phones like this one are stuck with a fixed amount of storage?

Not necessarily. Thanks to a USB specification called USB On-the-Go (OTG for short), you can add more storage just by plugging in a flash drive. Well, OK, there’s a little more to it than that. Here’s how to expand an “unexpandable” Android phone.