Technology challenge

Many mobile phone companies offer to....their customer's phones to a more recent model after a certain time period.

He was accused of ....into personal bank accounts and stealing the money there.

I always .. up my important documents on a flash drive.

The only way I can... up a signal on my mobile phone at home is to go upstairs and stand on the bed!

In order to access your email account, you first need to log...with your password and username.

I ... his number on my mobile phone and pressed the call key, but nothing happened.