What is the purpose of the screen where you need to press keys until the indicator is full?
To protect your communication with the Opera Mini server, the client needs to create a secret key. The key needs to be long enough so that it cannot be easily guessed or predicted. The best way to ensure that the key is not predictable is to use a random key. Opera Mini generates a random key for this purpose when you randomly press keys on the keypad until the indicator is full.
