Harman Kardon ONYX STUDIO 4 - Page 8

5-2
Yes
Replace the antenna
Check the connection for BT antenna
Replace the U9
BT cannot work
BT can not work
Go
No
Yes
No
Replace the PCBA for main board.
Check the power supply of the BT (SYS_3V3,
VCC_BT, BT_1.8V)