Help with a phone which shows nothing but the boot screen I have an Android phone that isn't starting up. All it shows when I power it on is the boot up screen. The recovery mode does not start and the ADB shell on my laptop fails to detect the device as well. What can I possibly do to get my device running again. I don't mind formatting the phone. The device is a Karbonn Titanium S1. Any help would be greatly appreciated.

Updated:


The adb devices command detects the device as long as it is switched off and connected to the PC via USB.
adb shell -> recovery --wipe_data gives a segmentation fault '139' error.
Trying to boot the phone at times ends up  in a screen that says:



  Encryption unsuccessful
  
  Encryption was interrupted and can't complete. As a result, the data
  on your tablet is no longer accessible.
  
  To resume using your tablet, you must perform a factory reset. When
  you set up your tablet after the reset, you'll have an opportunity to
  restore any data that was backed up to your Google Account.



The phone does not boot into recovery mode the manual way but does enter a frozen recovery mode when I run the adb reboot recovery command with an "data mounted failed" error.
The solution would be to flash your phone with a stock ROM. Search for the procedure online or take it to the service centre if you are not confident enough.