Microsoft on Tuesday started rolling out software updates to users of the Samsung Focus and LG Quantum, following more than a month of delays.
Microsoft and AT&T are still testing updates for the HTC Surround, the last phone model that still needs the updates.
Focus and Quantum users will get a message indicating that the updates are ready. They can then download the February update, which was designed to make the process easier, as well as the so-called NoDo update, which includes the capability to cut and paste.
The phones check for new updates every three days, said Eric Hautala, general manager of customer experience engineering for Microsoft, in a blog post. So users may have to wait several days for both updates. However, they can instead connect their phones to their PCs and download the updates via the Zune software manually.
Microsoft has struggled to roll out these first two updates to the Windows Phone 7 software. Shortly after it began pushing out the February update, it discovered that the new software made the Samsung phones unusable for some people.
The company then delayed the NoDo update in order to try to avoid any similar problems. It has seemed to shift some of the blame for the delay in pushing out the updates to carriers, saying that some operators take longer than others to test the software before approving it.
In a blog post earlier this month, Hautala said that the delays with the first two updates shouldn't affect a larger one scheduled for later this year. That software update, called Mango, will include a new HTML 5-friendly version of Internet Explorer and a Twitter feature.