Well, I wouldn't be too quick to open it up (depending on how well it's stuck together and your unstucking skills).
If fastboot boot novaAir_boot_img_3_2_3 runs, that tells you something.
If fastboot flash boot novaAir_boot_img_3_2_3 runs, that tells you something.
Edi: I got confused with all this NovaNoteNota123C stuff.
I had done a recovery for the Nova Air.
I just updated it with the 3.2.3 kernel
Sorry, my connection stinks, I'll try to upload later.
This is just the misc to get to recovery, don't flash it now.
The 20 MB recovery is coming.
These files are named prc so that I can upload, just rename them.
Code:
C:\>fastboot flash recovery narec.img
C:\>fastboot flash misc misc-rec
<long button reset>
You'll get a white screen, but it should have rooted ADB.
If you want the normal recovery screen, just "start recovery".
Just for fun, "start ttyscreen", you should get a short text on screen.