How can I get a response from my android which isn't opening after the whole system being upgraded?

[AC Question]

My mobile is not opening after the system update. It's showing the word 'Symphony' on a white screen and not responding. I've already charged it again and again and when it's turned off it says that it is full charged while being put in a charger. I have no virus in it as far as I'm concerned cause I scan it regularly through CM Security. I have placed the sim aside and tried to get a response but failed just like before.

 

[the tall guy]

Hi, what device do you have? are you able to boot the device in to recovery mode?

 

[AlphaTango414]

Please take a moment to register a free user name with Android Central so you may respond to this thread.

What device is this referring to. If you are able to boot into recovery, try wiping system cache partition then reboot. Does not wipe any personal data. If it still doesn't fix the issue boot back into recovery, take a deep breath, and do a factory data reset. This will delete all personal and saved data on your device.