my ROG PHONE 3 NOT Turning on

[Ali0_9]

hello guys my phone won't turning on at all what happens first it shutdown by himself then i try to turning it on again it dide but after few seconds lagging & shutdown i try again and won't turning on at all

[Danishblunt]

PM8150 chip died. You need to send it for repair, since you have no warranty on your phone it will cost you quite a bit.

[Ali0_9]

Danishblunt

PM8150 chip died. You need to send it for repair, since you have no warranty on your phone it will cost you quite a bit.

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really? how much and it worth changing? or buy new one.
also if you don't mind how the chip diead can you expline to me