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In modern smartphone repair, "Level 3" refers to component-level work on the printed circuit board (PCB). Technicians use full schematics for: I phone 7 full schematic vietmobile.vn - Slideshare
NFC frontend, main power management IC (PMIC), or baseband CPU Level 3 Repair Guides vietmobilevn schematic full
Without more specific information, it's challenging to provide a precise answer. However, I can offer a general guide on what might be included in a full schematic for a mobile device and where you might find such information. In modern smartphone repair, "Level 3" refers to