Apple Powerbank G4 manual Bluetooth Card not recognized by other devices

4.Try known-good battery. If it charges, replace the battery. If doesn’t charge, check the battery connector and its connection to the logic board.

5.Replace the battery connector assembly (requires removing the logic board).

6.Turn off the computer. Perform the keyboard PMU reset procedure described in the Hardware Troubleshooting Tools and Tips section. Wait five seconds before continuing. Press the power button to start the computer.

Warning: Resetting the power manager will permanently remove a RAM disk, if present, and all of its contents. You will also need to reset the date and time (using the Date & Time system preference pane).

7.Make sure the DC-in cable is firmly connected. Look for damaged insulation or wires.

8.Replace DC-in cable.

9.Replace DC-in board.

10.Replace logic board.

Bluetooth

Bluetooth system preferences does not show up under Hardware system preferences

1.Check the DC-in flex cable’s connection to the Bluetooth card and logic board. Make sure the flex cable is not damaged, is inserted straight and is completely locked down by the locking bar.

2.Replace Bluetooth card.

3.Replace the logic board.

Bluetooth Card not recognized by other devices

1.Open Bluetooth in system preferences and make sure under the Settings tab that Discoverable is checked.

2.Check the Bluetooth antenna is connected to Bluetooth card.

3.Replace with known-good Bluetooth card.

4.Replace display panel assembly.

5.Replace logic board.

24 - PowerBook G4 (17-inch) Troubleshooting Hardware Symptom Charts