Ibook g4 can't recognize wifi card but recognize bluetooth

Hi,there:
G4 can't recognize wifi card , but can recognize the bluetooth, last night I take apart of machine, and found that the 2 are into 1 chip, but now I forget which model is it?maybe 1127.
When I take the card out and put back again, start machine , mac will recognize it and after a few minutes, the card disappeared.
Does this showes the wifi-bluetooth card is faulty? or sth else?
All the best!

do the PMU & PRAM reset first. still having issues, then try pulling the card & all the cables & put it back in.
do the PMU & PRAM again once back together.

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