Dear Denesh,
I was using wipe out the device completly. but same problem will appeared.
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OMG i was try to change font style after changed it it appeared reboot. i was press ok then mobile was rebooted. after reboot Writen theme only CANVAS DOODLE 2 will appear after that nothing to goto desktop screen. i am stress now please anybody can give solution on this problem. i was try to format the device and wipe data factory also i was reset. please anybody give solution on this problem.