When an encrypted Android phone is started, this is what happens (to my best knowledge):
- Boot phone
- Decrypt storage, which requires PIN or password
- Start up Android
- Homescreen appears
- (You may have to enter SIM card PIN code, but let's ignore this here)
- Phone works, which requires PIN or password to unlock home screen
So password or PIN are required twice. Let's call these PIN1 and PIN2. On phone1, I have to enter PIN1 and PIN2. On phone2 I only have to enter PIN2.
How can I configure phone2 to have to enter PIN1 as well?