[Eee Pad Transformer Q&A, Help & Troubleshooting] SimonFiliatrault:
ok here's the detail steps I did...

1) I have a TF101, B60... S/N, thus SBK1 (what ever that means!)

2) Using this thread: http://xdaforums.com/showthread.php?t=1688012

- Need APX Drivers: http://xdaforums.com/showthread.php?t=1514942

Found those instructions that partially work:

http://xdaforums.com/showthread.php?t=1514942&page=4

Search in the start menu for Device Manager and open it.

Plug in your tablet via USB while in APX mode (hold power button and volume (+) until the screen turns off).

The driver should try to automatically install off the tablet upon plugging it in to your computer.

If it fails to install, you will have an "Unknown Devices" section in Device Manager.

Right click on Unknown Devices and hit update driver.

Then hit manually install driver. Point the file browser to the root folder of the extracted package that you downloaded.

For clarification: You downloaded the zip in the OP called Universal_Naked_Driver_0.72.zip.

When you extract it, you should get something like Universal Naked Driver 0.72 or something like that.

Point that file browser to the newly extracted folder, NOT the subfolders.

If you point it to the amd64 or the i386 subfolders it will not work. Hope this helps you out!

That is partly true... here's what I did:

1. power button + volume up

2. device manager showed "other devices" - APX

3. right-click APX and update driver

4. point to extracted naked driver folder

5. Cannot install - hash not present issue!

6. Found this how-to on installing unsigned drivers: http://dhakshinamoorthy.wordpress.com/2012/05/14/installing-an-unsigned-driver-in-windows-8-x64/

- Cannot find the control panel advanced startup menu!!!

Found those that work! http://pcsupport.about.com/od/windows-8/a/open-advanced-startup-options-windows-8.htm

Method 2: PC Settings

Swipe from the right to open the charms bar.

Tip: If you have a keyboard, use WIN+I and then skip to Step 3.

Tap or click on Settings.

Tap or click on Change PC settings at the bottom of the charms bar.

Choose Update and recovery from the list of options on the left of the PC settings window.

Note: Prior to Windows 8.1, choose General instead and then skip to Step 6.

Choose Recovery.

Locate Advanced startup, at the bottom of the list of options on your right.

Tap or click on Restart now.

Wait through the Please wait message until Advanced Startup Options opens.

After reboot, I could install the Asus Transformer APX interface.

downloaded easy flasher: http://yarr.ntg.cx/pub/EasyFlasher-0.8.3b-STABLE.zip

extracted and started with SBK1

Choose TWRP 2.2.1 and clicked flash

Tablet need to be in APX mode (power + volume up)

click flash and ok

Saw this on easy flash:

Running Wheelie..

>Tablet is now ready for Nvflash

Flashing twrp.SOS

>Finished, now reboot into recovery! :)

Saw this on tablet:

Entering NvFlash recovery mode / Nv3p Server

Chip Uid: xxxx

!!! phone update success !!!

!!! phone update success !!!

Copying those file to root of flash drive

- KatKiss-4.4.4_032b.zip

- gapps-KatKiss-4.4.4_20140720.zip

- fsync_on.zip

3) Booted to TWRP Recovery

1. Pressing and holding Power & Volume Down

2. when white text appears at the top of the screen, then quickly hit Volume Up once

Now we see the TWRP!

4) Goto the WIPE menu, and wipe everything apart from External Storage (This will 100% wipe your TF, so if you have anything you want to keep, back it up, you can also make a Nandroid backup inside of TWRP, so make sure your MicroSD Card has enough room if you choose that)

- cache

- Dalvik cache

- Factory reset

- System

- Internal storage

- Format data

FAILED!

Unable to format data

5) Once everything is wiped, goto the INSTALL menu and install KatKiss ROM you copied to the MicroSD Card (Might have to select External from the INSTALL menu to navigate to the MicroSD Card)

- Choose katkiss rom

KatKiss-4.4.4_032b.zip

- clicked home

6) When the ROM says it is completed the install, go back to the INSTALL menu and install the GAPPS you also copied to the MicroSD Card

- gapps-KatKiss-4.4.4_20140720.zip

- Home

7) Also installed fsync_on.zip

- This is optional to have more speed, but can cause data loss if tablet reboot

8) WIPE Cache and Dalvik Cache

9) Reboot - System

- Should see the new OS start - with the dog and colored circles!

10) After a short minute... you will get the welcome and setup screen

- Do standard setup!

Tablet is up and running... NICE!

Thanks a LOT!

Will now re-install my stuff and test... will keep you posted.

Do this detailed how-to exist somewhere?