What exact you are encountering (e.g., short circuit, loops, no boot)?

The "brain" of the board, where the main processor manages inputs and outputs. The schematic shows the pinout for data buses and clock signals.

Could you tell me (e.g., blinking lights, black screen, or won't charge)? I can help you pinpoint which section of the schematic to test first. Mother Placa Bangho B251 B240xhu 6-71-w24h0-d02a Gp

While the schematic is the mathematical and logical map, the is the physical map. It tells you exactly where a component (e.g., Resistor R1205cap R 1205 or Capacitor C310cap C 310 ) is located on the green PCB.