Hello again. I tried to open and re fitting everything perfectly as shown in video on youtube. But still its not booting up. now when connected to pc, white LED constantly blinking at interval of few mili-seconds . And device is not recognized by flasher anymore. I didnt touched anything accept display fitting.

Before that opening, my phone booted once for few minutes.i was able to type and send a sms, and after 5-6 minutes display went black.
I even found in local market for display replacement. but could not find it. As no one use this device anymore here.
So any more suggestion as im open to try anything to make it working???