@suyog, what is your problem? same cmt-mcsuw? say please,
1)did you successfully flashed your device with last firmware version?
2)put log here please or attach a screen phoyo of log of your actions on flashing it
3)i dont think so that is hardware issue..hope that not.
3)which version is your device? is this 003 (brand but factory shipping China)

a little tip : go to the settings>about product, take a snapshoot the place where shows barcode. send this picture to your computer,scan this picture via any barcode scanner - you will get the wright product code which with you find the wright firmware to flash cmt - i did like that. (ofcourse if your device booting in OS)