I have a similar problem. My mobile is a HUAWEI G6620. I always have no problem checking my email via my mobile but yesterday i tried checking them but cant. I can get to the sign in page so i put my details in then clicked SIGN IN but nothing happened except i get a message saying INVALID URL. My husband has the same problem but he just cant sign in. No message appears on his phone. Me and my husband thought it was ourselves that had done something wrong but after reading these comments from other Google users we now know that its not us but its Google

GOOGLE PLEASE SORT OUT THIS FAULT AND CORRECT IT PLEASE