Lenovo A328 Service Manual page 13

LENOVO
Download troubleshooting
Main related component: BBIC(U108)，NAND+SDRAM(U401),RF-TR(U106),
XTAL CRYSTAL（X101）, MINI USB(J802).
UART connection fault
Soldered again or replace
BBIC
≤20MA
Check the clock generation
circuit(related to BBIC)
)
Check the BB path
component in place and
of correct value type
Download fault
Press phones power key
Observe the current
≥30-200MA
Check the baseband
circuit(related to BBIC
Keypad FPC,LCD )
Soldered again or replace
damaged component
Download software again
END
Check circuit component
visually .soldered again or
replace damaged component
Current is large
(about 1 A or higher)
Check the Vbat circuit
component(related
BBIC .PMIC.TR.PA.LCD....)
to
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