i couldn\’t understand whether my phone is struck in gears or its doing installation for windows 10 since 9 hours. what should i do now
Soft Reset usually clears up a stuck update. Like realwarder said, have a bit of patience, but hung for an hour is almost always a sign something got stuck. Soft Reset: hold the Volume Down + Power buttons until the phone vibrates and reboots (about 10 seconds). Soft Reset is a great go-to to solve many types of glitch. If you need additional help or have more questions or details to share, please join the site so you can reply in this thread. See this link for instructions on how to join Windows Central.