iPhone 8 Plus does not turn on, died on charging in the car! Short circuit diagnostics

iPhone 8 Plus does not turn on, died on charging in the car!
the iphone 8 does not turn on after being charged in the car.
iPhone 8 Plus does not turn on, died on charging in the car! Short circuit diagnostics
Many service centers before us could not fix the iPhone 8 Plus-told the client that burned down most likely the processor or need to change for big money charge controller U2 )