I went through a lot of posts and other forums with users having issues with the tool. I've read it relies on the Device Tracker but couldn't get that to work. After trying everything posted in this forum and doing a reset (no longer rooted) I still couldn't get v7 or v8 to work for my tf700. I contacted ASUS support via email and they replied this morning. They sent me a link to a v7 .apk and it worked with no issues. I was very happy to see them helping me do this even though it would then void the warranty. Here is what they sent me, including full text as to give all credit to them:
"Thank you for contacting ASUS Customer Service.
My name is Emma and it is my pleasure to help you with your problem.
I will do our utmost to assist you in resolving this matter, I apologize for the trouble you seem to be experiencing with the device.
Could you please check whether the unlock tool you downloaded is right first and then accomplish it through the steps I sent to you.
URL omitted due to me being new user. Search for the "Version V7" and File Size should show "613.54 (KBytes)2012/07/25 update"
Please install this apk and follow the below steps to unlock device
1.Launch “Unlock Device” on your app menu
2.Read and check the description, Press “OK”
3.Check “agree” and press “Press to unlock your device”
If you still can not unlock it, could you please provide the wifi mac address for me?
Have a great day!
Once again, thanks for choosing ASUS products.
Welcome to refer Troubleshooting & FAQ for ASUS products in ASUS website:
If you continue to experience issues in the future, please do not hesitate to contact us.
An email survey will be sent to you within the next 5 days. Please be sure to rate the service I provided to you today.
Best Regards,
Emma
ASUS Product Support Team
888-678-3688"
I created an account here in hopes this .apk will help someone else get the tool working to allow further enjoyment on the tf700 as I plan to do.
Thanks all!