Microsoft pushed a small update last week to the Windows Phone 7 devices which improved the update process itself. The update process was successful for over 90% of the devices whereas some devices had problems. Especially Samsung devices went to bricked state which caused Microsoft to stop rolling out update to Samsung devices. Now, Microsoft has solved the problem and resumed the update. Here is the announcement from Microsoft.
Starting today, we plan to resume rolling out the February update to Samsung phones. Meanwhile, weâ€™re continuing to dispatch the update to other Windows Phone models. As has been the case, the software patch is being sent out on a rolling schedule. Youâ€™ll see a message on your phone when itâ€™s available.
During the past week the engineering team has pinpointed and fixed problems that were preventing a small percentage of Windows Phones from installing the February software patch. We apologize again for the delay and continue looking for ways to improve the update process.
Source: Windows team blog
Thanks Adam for the tip.