G570f from problem

I had problem during frp unlock on g570f.i flashed ADB enable file from the support the fone got stuck on logo..later forced to power off.the phone went dead.i had to disassemble the whole fone to bring it back to life by unplug ING the battery..later I had to downgrade to unlock frp..........


I just want to know the reason why the phone went dead.

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