[Shield Android Development] Gytole:
(I just want to state im no divoluper nor do I claim responsibility to what you do to your computer/devices. i'm a tinkerer, a jack of all trades, and a master of none. i'm just here trying to help others where we keep failing! Tinker On!) This is also a WIP! I work 12+ Hour Days, but I will make this better!!!)

So I found a driver fix for Windows 8.1 64 bit that FINALLY after a day of messing with it, was successfully able to update the driver for the Fastboot/ADB "Android Debug Bridge" portion in Device Manger for the Nvidia Shield. I have a Lenovo Y500 Dual GT650 SLI laptop and for the LIFE of me, no matter what I tried it didn't work. Universal ADB didn't work, Minimal ADB didn't work... this was finally the fix for ME at least...my computer recognizes Fastboot on both 3.0 AND 2.0 USB ports (;

Step 1 - (Uninstall Previous Drivers)

- With your Shield Booted in to android, and USB Debugging enabled under Developer Option, plug your shield in to your pc, and Uninstall any previous drivers for Android Fastboot (universal ADB) Via Device Manager - (Start+E) then click Manage at the top, then Device Manager once computer management is open.

Step 2 - (Disable Driver Signature Enforcement)

- Unplug Shield, then move your mouse to the bottom right of the screen so the side panel pops up. Click ("Settings"), then ("Change PC Settings"), then ("Update and Recovery"), then ("Recovery"), then ("Advance Start up Restart now"), then ("Troubleshoot"), then ("Advanced Options"), then (Start up Settings"). then ("Restart"). Once your computer restarts you should see a list of options, you want to click number 7, Disable Signature Enforcement.

Step 3 - Download Windows 8.1 Fastboot drivers

Once your computer starts back up, download and extract the FOLDER from this ZIP to your DESKTOP http://www.mediafire.com/download/i3lcm7dwl581518/ADB_Fastboot_Drivers_Win81.zip

Step 4 - Re-install and correct ADB Drivers

Open Device Manager again, and Plug in your shield while it's booted into Android. Wait for the drivers to install like normal. if you see any exclamation points, right click the device, hit ("Update Driver Software"), then ("Browse my computer for updated driver software"), then ("Browse") then click "Desktop" and the ADB Driver folder then click next and it should pop up RED saying Install or Not install. you obviously want to install...Click next and you should be good! Now to check fastboot! LEAVE DEVICE MANAGER OPEN!

Step 5 - Correct Fastboot

Driver Unplug and Turn off your shield. Once it is OFF, press and hold the BACK/HOME buttons then press the Nvidia Center Key on the Shield. This will put you into Fastboot. Once you're IN Fastboot, plug your shield back into your PC. it should install the WRONG driver for Fastboot AGAIN and should show an Exclamation point, just follow step 4 and you should be able to update it to the correct driver then Wallah! You can now use Hexitnow's Toolkit "Shield Ram" Flawlessly! http://xdaforums.com/showthread.php?t=2661067

Hopefully this works for you guys, it worked for me 6 times now!, I uninstalled everything and did it again and she booted into fastboot using his tool and then rebooted once in Fastboot. I was then able to Unlock the Bootloader, install CWM and Root Fine Just fine!

Confirmed working on Windows 7 64 bit also! I've Used 5 other peoples PC's/Laptops to confirm. One thing I can say is they've ALL been 64 bit verison's of Windows 7/8. haven't tested on 32 bit...who has 32 bit anymore anyways?...haha

----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

64gb SDXC card fix

After some tinkering I discovered a way to finally get my Nvidia Shield to recognize my Sandisk Ultra 64gb Micro SDXC card via the shield.

It wont recognize the Standard format of exfat/128kb cluster size, and NTFS format wont allow the shield to write to the card. So I was experimenting and found that if you plug the card into your pc and format it exfat/2048 cluster size, the Shield WILL read it and you are able to successfully erase the SDXC card via the shield under the storage menu! Success!! I am now able to Read/Write from the 64gb while my shield is plugged into the PC and from inside android, 4.4.2 ROOTED of course (;

Step 1 - Transfer files from SD card to PC

Take your SDXC card out of your shield and plug it into your PC via card reader and copy all needed/wanted files from the card to your desktop. Start+E/Double click SD card/ Highlight and copy all/Paste to Dsktop

Step 2 - Format SDXC with your PC - YOU WILL LOSE EVERYTHING

Now you need to format it to something the Shield can utilize. go back to my computer "start+E", and RIGHT click your SD card and hit FORMAT. Then Change the cluster size to 2048 and hit quick format.

Step 3 - Format/Erase SDXC with your SHIELD

Now eject your card from your PC and plug it into your Shield, and go to Settings/Storage, then scroll down and hit ERASE SD card. It will take about 10-15 seconds but it is formatting it to be able to use it properly.

Step 4 - Transfer Files back to SDXC card

Now copy all your important files that you saved to your desktop back to your SDXC card on your shield either by plugging the Shield into the PC or by taking the card back out, and plugging it back into a card reader... which is faster...and there you go you should have a totally usably 64gb card!

If This has helped you at all be sure to like my post and comment with tips/suggestions or thanks!