Blu STUDIO 5.0 CE - Page 39

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WIFI BT FM GPS 4 in 1 circuit
Main related component: BBIC(U101),power IC(U401),4 in 1 IC(U701), antenna.
YES
NO
YES
NO
WIFI can’t open，
Can’t work normal
Software update and check
the function is OK or not
Software update
Check 4 in 1 IC 29#.33#.36#40# pin
have 1.8V, 3.3BVsupply voltage or
not
Check power IC have VBATT
V supply voltage or not
Replace U701
Check U701 10pin have
32KHZ clock signal
output or not by
oscilloscope (OSC)
Replace Y701
Re-solder or Replace
U701 4 in 1 IC
Re-solder or Replace
CPU MT6572