The big question when it comes to Motorola phones, particularly from the Moto series, is when Android 5.1 will be coming. There have been numerous reports on the status of Android 5.1, and this is the latest report as applies to the first and second generations of the Moto G, the Moto X, and the Moto E from such carriers like AT&T, Verizon, Sprint, and US Cellular.
Fortunately, there is an easy way to check to see whether or not Android 5.1 is available for your Moto phone as Motorola has a very convenient website set up so you can check on the status of the upgrade. Listed below are the current status updates of those Moto phones that have it, with each carriers, along as estimates of when it will arrive.
For the most part, only one generation of the Moto G is listed on the Motorola site, and it says for the 2nd Generation of the Moto G, it rolled out on June 2015 for Verizon. It rolled out earlier for T-Mobile, starting in April 2015. With AT&T and Sprint, the Moto G will be "upgrade to the Android 5 Lollipop release of Android, pending partner support. For U.S. Cellular, both first and generation Moto G is listed, and both say that they will upgrade to Android 5 version, "pending partner support".
A recent report from the IB Times states that users of the 2014 version of the Moto G should be receiving the Android 5.1 Lollipop update, as it is now live in China. David Schuster, Motorola's senior director of software management and unofficial spokesperson of newest Android versions on Motorola phones, hinted at the impending release of new Lollipop to other countries like the United States, the United Kingdom, and India.
The Moto G 2nd Generation Android 5.1 rollout in China has been confirmed by the iDigitalTimes. There are also reports that a soak test variant of Android 5.1 for the Moto G LTE (2013 version).
Moto X, 1st and 2nd Generation
The first generation of Moto X on Verizon has the guarantee of Android 5 Lollipop, as does Sprint, T-Mobile, AT&T, and U.S. Cellular. The second generation of Moto X says that its Android 5.1 rollout began in June 2015 for Verizon, and this goes for AT&T, T-Mobile, and U.S. Cellular . This generation of device doesn't even appear with Sprint.
A report from the International Business Times says that the Moto X from 2014 and the Moto X from 2013 are currently receiving the Android 5.1 Lollipop update. A recent report from Droid Life has stated that the Verizon Moto X, 2nd Generation, is going through a soak test for Android 5.1. There are also reports that a soak test has also gone out for the AT&T version of the 2nd Gen Moto X.
As for the first generation of the Moto X, the Android 5.1 soak test has begun for Verizon and AT&T, which means that it will be available for users of both those subscribers soon. So far, there doesn't seem to be any word about T-Mobile and Sprint.
The Moto E began its rollout on Verizon and U.S. Cellular on June 2015, and one month earlier for T-Mobile. The device doesn't even appear for AT&T. As for Sprint, it says that it launched with Android 5.0 Lollipop.
There is a report from the iDigitalTimes with some news about the Moto E: "I have gotten a lot of questions recently about Moto E (1st Gen) timing for the Android 5.1 Lollipop upgrade. As some of you know... we had run into an issue in our early testing of the upgrade that has been a real challenge to debug." There appears to be some soak test in Brazil and India going on with this.