ADB Won't see ASUS TF300T no matter what topic

Okay, a little background info:
- This is not my tablet, i'm trying to fix it for a friend
- Not even sure it's a TF300T, is sure looks like from the pictures, it has a blue back.
- I don't have the docking station, just the tablet itself.
- Previously, my friend had someone else try to fix it unsuccessfully, so I don't know whats been done to it.
- There is no data that needs to be recovered. At this point, i'm just trying to get it back so I can flash it with CM.
- The only computer I have at my disposal is running Win7 x64.

Symptoms:
- Boots to Asus screen with nVidia logo at the bottom-right
- Behavior is constantly rebooting to the asus screen until battery is dead
- Hold down VOL- and PWR, goes to Asus bootloader with the following options from left to right: RCK, Android, USB and Wipe Data.
- Recovery Kernel causes it to give me the dead android w/ red triangle.
- Choosing the Android does nothing.
- Wipe Data causes it to give me the dead android w/ red triangle.
- Choosing USB gives you the text "starting fastboot USB download protocol"

Troubleshooting:
- Connecting to computer and choosing USB, the computer will detect the tablet and install "ASUS Android bootloader interface"
- Running the command ADB devices gets me "List of devices attached" with a blank space below it.
- Running the command Fastboot devices gets me "015d25685207f816 fastboot"
- In device manager, I see the tablet under "Samsung Android Phone", and its labeled as "ASUS Android bootloader interface"
- I have tried uninstalling it and installing WCID drivers using Zadig
- I have tried uninstalling everything and using the Google drivers from the SDK
- I have tried uninstalling everything and installing ASUS Sync
- I can run ADB devices and get the ID of my Samsung tablet without a problem

So I'm out of ideas how to get into this tablet so I can flash it with the ASUS blob.
Any ideas, 'cause i'm fresh out of them. Thanks!