Motorola Defy XT: Republic Wireless has unleashed a significant software update for both the single-band and dual-band Defy XT.

ENGADGET: Refresh Roundup: week of January 28th, 2013 Mobile

Most recently, the company admitted an error with its deployment of a single-band Motorola Defy XT, which is compatible only with Sprint's 1, 900MHz network.

ENGADGET: Republic Wireless announces dual-band Motorola Defy XT, offers incentives to quell coverage woes

The sole phone that works with the company's technology is a Motorola model, the Defy XT.

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