Help for WEIIMI M8 Model

Hello

I have weiimi phone with slow process. the phone contain SPD7715 cpu. i download file from need rom and flash it. Phone power on but lcd became white. Now i had same working model. i read file from working phone and write that file to damage phone but cannt solve lcd problem.
Plz help me is there any other method to read file in pac format.

Thanks

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