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U1320：LCD back light led’s driver.
U1708：G-sensor.
J5401： The connector between mainboard and ant subboard.
U1115：USB’ VBUS power signal’s over voltage protection.
J5402：T-flash connector.
U5403、U5404：SIM card connector.
J1504：The connector between mainboard and main camera FPC.
J5732：The connector between mainboard and front camera FPC.
J1401：JTAG’s connector.
U1403 U1404：The common mode filter of front camera’s MIPI_CSI interface.
U1405、U1406、U1407：The common mode filter of main camera’s MIPI_CSI
interface.
U1401：The main camera’s flash led
U1801，U1803：The saw filter of GPS signal.
U1802：The LNA of GPS signal.
U501：Speaker PA。
U5630：Gyroscope.
J5460：volume’s key+ and key -
J5351：headphone’s connector.
