ESD protection chip IP3319CX6 is a nightmare when replacing is needed.
While repairing (issue 16) it was found to be impossible to replace the IP3319CX6 which came off the PCB by accident. Propose to replace the IP3319CX6 (WLCSP6 wafer level chip-size package; 6 bumps) by IP4220CZ6 (SC-74 package) which also contains a build in zener diode for VBUS protection.