I got few codes
MacBook Air
MacBook Air
PPT001
The battery was not detected.
Contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available.
CNW001
CNW003
CNW004
CNW005
CNW006
There may be an issue with the Wi-Fi hardware.
Contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available.
PPT001
The battery was not detected.
Contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available.
CNW001
CNW003
CNW004
CNW005
CNW006
There may be an issue with the Wi-Fi hardware.
Contact Apple or take your computer to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available.
Have you done a PRAM reset, CMD+Option+p+r...
http://support.apple.com/kb/HT1379
In fact, do 3 in a row, takes a bit of time.
Intel-based Macs: Resetting the System Management Controller (SMC)...
http://support.apple.com/kb/HT3964
I got few codes