that’s a good question - dunno. Right now I’m having this problem:
Yesterday we were trying different solutions without any luck, the keyboard is broken. Only placeholder is showing up which I can close, but there’s no keyboard.
Some explanation. When you setup encryption, you need to type password to unlock the phone twice. First during boot and second once the phone is fully started.
Since 4.5.0.16 there’s an option to use alphanumeric password for encryption. To handle this, Jolla made new option on both lock screens. In the top left corner there’s an icon which allows you to show the full keyboard instead the digit one.
Now the problem is that somehow there’s some difference. The first unlock screen, the one during the boot, is properly showing the full keyboard when you click that button in the top left corner. But once the phone is fully booted up and you need to type the password again, clicking that icon in top left corner shows only a placeholder in my case. In others cases there may be no keyboard.
It’s just hipothetical scenario but this is what I’m observing on my phone.