They are the most irresponsible information technologies company I have ever seen!!!
To begin with, it is even impossible to reach your customer support - that I have logged in your web site numerous times in the last half an hour, still I can execute no operations on your "connected" website, nothing but verifying my account again and again in vain!!!
And, how dare, how comes, your Yoga Tab III system upgrade, can prevent me from accessing my device unless I can verify my google account? Even phones have an emergency call option without sim card, let alone google account verification, then why I have to present an account to simply literally turn on the laptop???
What if I want to use another account? What if my account was stolen? What if I have no access to verification for a technical reason, as if it was the case for me? Then shall I throw my tablet to the recycle bin? Take it to service because it was "updated" and now does not let the owner get in???
How dare you can disable me turning on my laptop and accessing home screen while every piece of applications and personal information were already deleted, on which terms?????
It is my choice to decide whether I want to setup same google account after update, not yours, and again it is my choice to use the tablet with or without a google account let it be on limited terms, not yours!!!!
Then, at the end, it would be a relief if you had saved user data previously saved on my tablet since asking my google account verification so keenly... but nope.
You do fail, and I do believe it is a breach of law to interfere my account preferences on my tablet. I would sue you if I was not overseas for a while for business.