One week after President Obama signed a phone-unlocking bill into law, T-Mobile has responded by becoming the first American carrier to launch its own unlocking app. Modestly titled Device Unlock, the app debuted on Friday in the Google Play store, though it comes with one major limitation: It only unlocks the Samsung Galaxy Avant, a lower-specced offering that launched in late July exclusively on T-Mobile.

The app offers two unlock options for Avant owners: temporary, for the sake of international GSM use, or permanent. Choosing either option sends a SIM unlock request to T-Mobile, as opposed to automatically unlocking. A glance at T-Mobile's unlock FAQ, which appears unchanged since before last week's bill was signed into law, clarifies that requested phones won't unlock unless they've been paid in full and haven't been reported stolen, among other requirements.

As such, the app merely streamlines a process that T-Mobile had already put into place well before a deadline of February 2015. Confusingly, Google Play advertises the app as compatible with any T-Mobile phone in a user's account, despite the app's current Avant-only status, which leads us to believe it will eventually support other T-Mobile handsets (seeing as it does little more than report a user's phone information to the unlock department). Until that changes, the app will probably continue to be bombed with the kinds of negative reviews it's already receiving from non-Avant users.