iPhone 5s not charging and heating

Hi everyone I have a problem with an iPhone 5s. I still changed u2 and after that it worked Now something is in short. C7_rf has every pads to ground . I took off that component but still the same. I can’t find the way on this capacitor. One pad go to ground and the other one is connected to a pad under pm. Than it goes to another part but I can’t find it on schematic. His name is PP_LDO7_DAC_1v. Maybe on baseband but I don’t know why there is the short . Thank you very much for any help
Sorry for my bad English , I hope you understand what I mean

Inviato dal mio iPhone utilizzando Tapatalk