A more serious and common issue is a short circuit on the PP_VAR_USB_RVP line. This is often caused by a failed bypass capacitor. For example, a shorted capacitor on this rail can prevent the device from charging or even cause it to fail to boot.
: The USB-PD handshake fails. The issue likely lies with the USB transceiver IC ( Hydra / Kraken ) or corrupted CC lines. 5. Micro-Soldering Repair Strategies pp-var-usb-rvp
: The main charging IC from which this rail typically originates or interacts. USB Controller (Tristar/Hydra/Kraken) A more serious and common issue is a