I can't open up my g1 android phone. how could i access the lock. it says that i need to sign in to google account. i do have an google account but when i sign in my account it doesn't open.

I cn't unlock my zte v9 tablet phone, it always say wrong email address or wrong password

This happend to me too, except it happend when i put the wrong lock patter in too many times. the reason it wont access ur google account is probably becuase u either dont have internet or no wifi where u are at. so go to a place where they have wifi and try there. or call tmobile tell them u forgot ur password and dot have internet and see if they can help