codes that have on board is VPCEH15FD, PCG-71914L, 31HK1MB00D00

After I opened the notebook, examining the components seen that the chip is PU9 with pins, between 29 and 32 oxidized (had a ball of rust). I made a heavy cleaning these pins, cleaned with isopropyl alcohol but note when league wants, most of the time it costs to call. Once arrived to turn on and load windows restoring the system to shut down soon after and did not call back later. This time it was on the north and south had normal chips almost warm warming. I'm not using it the battery connected.

I wanted to replace the PU9 but the client did not wait and ended up taking the notebook though.
notebook delivered to the customer unrepaired.