[Asus Transformer TF700] M1ster1:
Thanks LetMeKnow !

It was the right way to do it (Berndblb advised this also here).

It worked and I've now TWRP installed ! :victory:

But it wasn't so easy, fortunately there's plenty of help around here :)

I'll write here quickly how I did it, it could help someone, who knows, sharing doesn't hurt, even if I'm sure there's plenty of different methods to do it.

I found some help in this guide because the explanation under "Download - Recovery Image / Fastboot Method:" from the TWRP page is a bit rough for a beginner like me.

First I need to mention that I've Windows XP on my computer.

As you can read here there's 3 different ways to install TWRP on the TF700, the first one is the easiest one, but you need to be root, if you're unrooted like me and you want to skip rooting, let's install TWRP via fastboot.

Requirements :

- Bootloader must be unlocked. Very easy following this thread.

- ADB and Fastboot must be installed on your computer. You can follow this guide, this way you'll install them from the latest version of Android SDK and avoid any trouble.

- You should have the USB driver for your TF700 installed on your computer. I've read multiple times that that the official drivers could create some trouble, and indeed it happened to me. So you can give a try, and if this doesn't work, let's go for the Universal Naked Driver.

- Download the last version of TWRP (the newest .blob file) from here. Rename it to twrp.blob and place it under C:/Android (or C:/Android-adb, depending how you've rename your folder containing adb and fastboot.exe).

Fastboot method :

- Before starting, you want to be sure that your computer recognize well your tablet, otherwise, you'll follow a tutoriel like me, enter the final command, press enter and watch... nothing ! just a prompt command blinking in front of you, because if the script don't find any device, it will just write nothing.

To be sure of that, turn on your TF700, Plug it to your computer via a USB cable, then enable USB debugging (Tap the Build Number 7 times under Settings, About Tablet and it will show up under Dev Settings).

Now, if you're under WinXP like me, it may be possible that the pc doesn't recognize well your tablet, and you'll probably have to play with your device manager (to go into your device manager right-click on My Computer and click Properties, In the System Properties window click the Hardware tab, In the Hardware tab click the Device Manager button then look for your device, click on it, uninstall drivers, then reinstall the naked driver mentioned before for example). You may find some help here or around here in the forum.

Once you think your tablet with USB debugging enabled is well recognized by your computer, try to open a command prompt (First, press Win + R to launch the Run dialog, then enter “cmd” in the dialog box) and type “adb devices” (without quotes). The daemon will start up, and all connected devices will be listed. If your device shows up, let's continue to next step, otherwise, you should continue to play with uninstalling drivers, reboot, installing others drivers...

- Turn off & Unplug your device.

- Enter fastboot mode : Keep pressing the Power button while holding the Volume down button till the screen responds then

1) If you have an old bootloader select USB icon, press Volume up button.

2) If you have the new 4.2.1 boot loader it automatically boot into usb mode, it should be written in the upper left corner something like this :

The Device is UnLocked.

key driver not found...booting os

Android cardhu-user bootloader <1.00 e> released by "ww_epad-10.6.1.14-20130329" A03

Starting Fastboot USB download Protocol

I didn't know that and I found some answer here and here.

- Plug the TF700 to your computer via a USB cable. (and make sure no other android devices is connected to the computer)

- Open a command prompt in your computer (First, press Win + R to launch the Run dialog, then enter “cmd” in the dialog box).

Just to be sure (one more time) that your device is well recognized by the computer type “fastboot devices” (without quotes).

You should see at least one line with some numbers written.

Then, change the working directory of the command window to the directory where you had placed the TWRP recovery file (twrp.blob) using the command “cd directorylocation” without quotes (probably, “cd c:\android“).

Then, in the command prompt, enter the command: fastboot -i 0x0B05 flash recovery twrp.blob

After

the process finishes, You can unplug and reboot your tablet.

- Normally the TWRP recovery is now installed on your device !

To check that enter recovery mode : Boot with "power + vol down" then after the splash screen put "vol up". You should see that image, cool right ?

I don't take any credit for this quick explanation because I took all the informations from this forum (and from different other websites) and gathered them together for my own case, but I think this may help others.

A big Thanks to all the guys here who take the time to write, explain and help, that's great, keep it up the good work :good: