[Asus Transformer TF700] drhode:
I found a way to install APX drivers in PC for TF700. As everbody, or almost everbody knows, these drivers are absolutely vital for the ones that want to run NVFlash to secure their TF700 in the best way against an eventual brick. As I experienced—and I know I am not the only—this adventure of APX drivers install causes a lot of trouble to people trying to figure out where are the drivers and how the install should be done.

Days ago, I posted these step-by-step instructions as a reply of a message about APX drivers. I am now posting it again at a separate topic, as this can be easier to find. The thing is that there's some "tricks" and "pitfalls" to the newbies like me when they try to install that Asus USB drivers. At first I couldn't install, I even thougt that they were not compatible with my Windows (I use Vista 32, that is famous as being really a ***** when comes up to install things). So, for ADB, in that moment I just gave up from Asus Android USB Drivers and installed Asus Pad PC Suite, that included ADB drivers, but apparently no APX. At that moment, when I was only looking for ADB, worked. But later, trying APX, I got really stucked. Just found the solution many sleepless nights later.

Please just notice that I am not an expert in anything: just a cat-crazy lady that works as text revisor and does patchwork quilts and amigurumi dolls at the free time. So, I'm afraid I can't help much on the technical side if any doubt appear (unless your doubt is about feeding an elder toothless cat with a bird syringe, syntax of verbs in Portuguese or about brands of wool and thimbles). Also can't assure this method will work for everyone.

Anyway, I'll be glad to help with the few I know. I hope these instructions can be of any use and save people from stress. Best wishes and happy APX'ing.

********************HOW TO INSTALL APX FOR TF700 IN WINDOWS************************

***One important warning I give to the stucked TF700 owners that are searching for APX drivers: DO NOT TRY TO USE UNIVERSAL NAKED DRIVERS! They will not work! Universal Naked Drivers are great, but made for TF101, Prime, Nexus, etc, etc, NOT for TF700 Infinity! So, any attempt to use that drivers, at the moment (March 2014) will give you nothing more than a last-longing splitting headache.

Use the pack from Asus: "Asus Android USB Drivers", download the pack from Asus website (go there, is one of the few downloads for Windows available for TF700)***

I'll just enumerate what I did and what I paid attention as necessary steps to install APX drivers for TF700 in Windows. If someone wants to give a try and follow them, there's the description.

1) Your device must be with the USB Debugging Mode enabled. This is found under Developer Options (enable it if Developer Options doesn't show by tapping 7 times the build number, under Settings/About).

2) Asus drivers dislike Windows auto-install. When we plug our device in USB (just normally, Android running), he is recognized and Windows auto-install prompts a message offering to locate and install drivers. IGNORE IT, SKIP IT. Just tell windows that will install later (there's an option for that, at least in Vista 32).

3) Then go to Control Panel, and choose "System". There, choose "Device Manager". There, look for something Asus, if you don't have previously installed any (if you have, uninstall it first, reboot the PC, then plug the tablet via USB). If you haven't installed anything and your tablet is connected, will appear something like "Asus ADB Interface", marked as not working by Windows.

4) Then, right-click over it and ask for "Update Driver". It will open a new prompt asking if you want Windows to search it automatically or if you want to search driver files manually from other sources. Say you want to search it manually. After, say you want to choose from drivers list (bottom option) and then say "Have Disk". And then direct Windows to search the driver in the directory where "Asus Android USB Drivers for Windows" are (uncompressed directory, please). The drivers file is the "android_winsub.inf", under the sub-directory "Android". Choose the file and proceed the installing.

5) This should install ADB. But, wait: the problem is the APX, not the ADB, right??? So, what does all this is for? :eek:

6) Now the magic (or, what so magically happened to me): reboot the tablet into APX Mode (power+volume up). And then another window of APX auto-install will pop. IGNORE IT.

7) Again, go to System/Device Manager. APX should appear there as "Asus Transformer Infinity APX Interface" or something fancy alike (if appear only "APX", something gone wrong and the installation already failed, at least here was this way). Is also marked as not working by Windows. You should again right-click and choose "Update Driver"

8) Repeat the process, if necessary direct Windows to the directory where the android_winsub.inf is (the one that was into the Asus Android USB Drivers pack). From this point my Windows installed automatically some parts, but, as I could notice, installed the driver from that same file of before.

This installed APX for me, and I could run wheelie and NVFlash!

So, I honestly hope this helps. I know it arrives too late for many, but still if can help somebody at least a little bit, I'll be happy.