The nearly two million iPhone-on-T-Mobile users—who are with the carrier before it even officially offers the device—are in luck today. T-Mobile announced a “minor iOS software update” that will be pushed over-the-air, bringing LTE, Visual Voicemail support, and other new features. Those with an unlocked iPhone 5 can pick up a T-Mobile SIM card and sign up for service right now, even though the company’s official iPhone 5 won’t drop until April 12. (T-Mobile holds the infamous distinction of being the last of the big four US carriers to come to Apple's device.)

According to TmoNews, the new software update will be released in just 72 hours on April 5.

“The T-Mobile Carrier Update is a minor iOS software update that enables official iPhone support by T-Mobile. When installed, the software update enables a handful of capabilities like Visual Voicemail, MMS Settings, and Network/Device optimizations that customers do not have access to today. On April 5, the software update will begin being pushed via OTA to all iPhone devices on the T-Mobile network with iOS 6.1.x or higher.”

Last week, the same site outlined instructions for jailbroken iPhone users to enable LTE if they’re impatient and can’t wait three more days.