No
Is BT_RST signal shape similar
to Fig.1 during Powering
on Bluetooth
Yes
Replace U101
2V8_VBT at C300=2.8V
No
BT_EN at R311=2.8V
No
Replace U101
Yes
Replace U300
Bluetooth
Power off
Is DEBUG_TX signal similar to
Fig.2 during Powering on
Bluetooth?
No
Replace U101
Is DEBUG_RX signal similar to
Fig.2 during Powering on
Bluetooth?
No
Replace Headset
Connect BT headset?
No
Is RF Power level at
Antenna Feeding about
0dBm?
Is RF Power level at
Antenna Feeding about 0dBm?
Replace M300
Replace M300
Establish a call
Is DEBUG_RX signal similar to
Fig.4-10(b) during Powering on
Bluetooth?
No
Replace M401
Are PCM_SYC8,PCM_TX,USC3
signal similar to Fig.14-8(c) ?
No
Replace U101
Redownlapd SW
No
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