....that you contact the manufacturer for assistance.
I had problems with my 4g reception (it turned out the transmitter I was using was switched off). Not realising why I had a problem I tried several times to get round the loss of signal. Eventually I did a 'hard reset' on the E5577.
When I then logged in again, I was asked the login details. Inside the Huawei lid it says 'admin' 'admin' as the login and password. So I entered them. BUT I was then told that the password was not strong enough, I was prompted to make another. I did this. Since then I have been locked out.... neither password is accepted. Any ideas what I could do?