The software maker points out that the new release brings a number of “small changes and feature tweaks”, and like in previous builds the major focus is on adding “improvements to the core quality”. According to the company, the majority of the known issue found on build 10149 have been fixed. In addition, the company confirms that it has fixed the “post-upgrade migration status screen was missing, which made the Lock screen appear frozen without the date and time for up to 10 minutes.” After upgrading to Windows 10 Mobile build 10166, everything should work as expected. The company continues saying that has also fixed the issue where users were having trouble unlocking their phones after entering a PIN. Furthermore, colors in apps should render correctly, and build 10166 improves reliability of app download and updates from the Store, which no longer shows as “beta”. Another visual change includes a new and bigger battery icon, which should make it easier for everyone to see. Finally, the company says that there are a few updated apps waiting to be downloaded from the Store. Remember that you need to have the Windows Insider app installed and configured to receive new updates via the Fast ring, then simply go to Settings> Update & Security > Phone update to check for build 10166. Source Microsoft All content on this site is provided with no warranties, express or implied. Use any information at your own risk. Always backup of your device and files before making any changes. Privacy policy info.