[Sony Tablet S] Mahaco:
Do you have USB debugging on?

Your device is not listed after adb devices?

Try

adb kill-server

adb start-server

adb devices

But I think you already know that

And if that didn't work than the next thing you could check if you have not already done that to check if you have your driver installed proper

1.You have Android SDK installed Make sure you have downloaded the Google USB Driver Package.

2.Open the google-usb_driver folder that you will find inside your Android SDK folder.

3.Open the android_winusb.inf file in notepad or any text editor to edit it.

4.Add these lines under [Google.NTx86] or [Google.NTamd64] depending on whether you are using 32 bit or 64 bit Windows. If unsure, it is safe to add these under both these sections.

;NVIDIA Tegra

%SingleAdbInterface% = USB_Install, USB\VID_0955&PID_7000

%CompositeAdbInterface% = USB_Install, USB\VID_0955&PID_7100&MI_01

;SONY Sony Tablet P

%CompositeAdbInterface% = USB_Install, USB\VID_054C&PID_04D2&MI_01

;SONY Sony Tablet S

%CompositeAdbInterface% = USB_Install, USB\VID_054C&PID_05B4

Don’t edit or replace any other text that is already there; just add these new lines and save the file.

5.Open a command prompt window and enter this command: echo 0x054C >> "%USERPROFILE%\.android\adb_usb.ini"

Note: this is where you have to use 0x054C instead of what is at the link, otherwise it wont work

Userprofile isn't by your Program Files ! Another example C:\Users\Mahaco\.android etc.

Now your Android SDK drivers are configured to support any Nvidia Tegra based tablet. To be able to use ADB and other SDK tools with your device, you can proceed as follows:

1.On your tablet, go to Menu > Settings > Applications > Development and confirm again that ‘USB Debugging’ is enabled.

2.Connect your tablet to your PC via USB. You will get a notification that some drivers were not installed, just ignore that.

3.Right-click ‘Computer’ and click ‘Manage’. Identify your device from the list, right-click it and click ‘Update Driver Software..’.

4.Choose to browse your computer for driver software and then select to pick from a list device drivers on your computer.

5.Choose to view all devices and click ‘Browse Files’.

6.Browse to the google-usb_driver folder inside your Android SDK folder and select the android_winusb.inf file.

7.If you get any warnings prompts telling you that the driver might not be compatible, also just ignore, choose to continue installing.

8.Once the drivers have been installed, you should be able to use ADB with your device.

9.To confirm that your device is recognized, launch a Command Prompt window and enter these commands again:

Quick launch > Start button + R then type CMD and push enter and cd to your working folder

( For example: C:\Program Files (x86)\Android\android-sdk\platform-tools\ )

cd.. [Enter] < type that until you only have your harddiskdrive shown.

cd program files (x86) [Enter]

cd Android [Enter] etc.

adb kill-server

adb start-server

adb devices

Boot Tablet S into recovery:

a) Hold down power and volume UP button

b) when SONY logo appears, release power button but keep pressing volume UP button

c) should load into recovery

This also gives you the MTP device driver.