Zenfone wont charge

yesterday i put my phone to charge while slepping and i had some technical problems with electricity in my home so the power kept coming and going so my charger got fried and my zenfone wont charge anymore with any adapter i tried using 4 others charge, tried connecting to pc, tried turning it on but still my zenfone wont turn on. when i press power button it makes 2 vibration it shows like its charging and the led than turns off. I know something in the phone got fried and i send it to service but they said they dont have parts, so im going to buy them online but i dont know what it got fried (usb port, battery or motherboard).

Sorry for my bad english and thnks in advance

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