It wasn't an emmc issue. Neither was it a brick or baattery or USB connectors. It was hw fault in the upper part of the motherboard. The DHD has two boards. The lower one which is the main board and the upper one which gods the camera, power button, volume rockers....
So I changed the upperboard with the DHD I got from my friend earlier. And it worked. It looks like something got burnt.
The only problem is the inn-call speaker isn't working in tbs upperboard. I am able to make cals via earpiece or loudspeaker.
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