How to unbrick Walton Primo GH2 (Rebrand of Gionee P4)

I flashed my Primo GH2 with onother flash file.... and from then mobile is not opening. My pc do not recognise my phone any more. I think Wrong Preloader prob.... there are no meta mode. (I tried). Not geting the KOLO, COLO, KCOLO point for Test Point so that i can short with GND... i'm uploading pics.. someone help me plz.. :(

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