I restarted my new Huawei p9 lite for the first time, and after asking for pin code it asked for the unlock password. The thing is, there is a dialpad but no "enter" button. So I enter my 4-digit unlock password and then it just stays there until the screen goes dark. I push power button to open the screen and it again asks for the password. I tried several times and now it asks to try again in 30 minutes! What should I do?