Microsoft's first Windows Phone 7 update hasn't gone down well, with the company confirming a 10 percent failure rate.
The platform holder said in a post on the Windows Phone Blog that 90 percent of people who received an update notification managed to install the new software patch successfully.
It also claimed that half of those that failed to do so were simply suffering from "a bad internet connection or insufficient computer storage space".
Microsoft's Michael Stroh went on to acknowledge that Samsung phones had been hit hardest.
"We've identified a technical issue with the Windows Phone update process that impacts a small number of Samsung phones," he said. "We're working to correct the problem as quickly as possible. But as a precaution, we've briefly suspended updates to Samsung phones. We are continuing to update other Windows Phone models as scheduled.
"Has the update process gone perfectly? No-but few large-scale software updates ever do, and the engineering team here was prepared.
"Of course, when it's your phone that's having a problem-or you're the one waiting-it's still aggravating," he added. "That's why we're committed to learning from our first update and improving the process. We know we have work to do, and we won't be satisfied until you are."
Earlier this month, Microsoft released a video demonstrating Kinect and Windows Phone 7 compatibility.