Fingerprint doesn't work on Sony 1 VI (XQ-EC72)

[Gireev]

Describe the bug

I am unable to unlock the database using the fingerprint feature.

To Reproduce

Steps to reproduce the behavior:

1. Open KeepassDX
2. The fingerprint button displays "unavailable."
3. Tap the "unavailable" button.
4. Toasts appears: "Type password and then click the button."
5. Begin typing the password.
6. A toast notification appears: "System error (internal Keystore code: 4, message: system/security..."

Expected behavior

The database should unlock using the fingerprint feature.

KeePass Database

• Created with: [Windows KeePassXC 2.7.*]
• Location: [/storage/emulated/0/Download/Keepass/databasename]

KeePassDX:

• Version: [4.0.8]
• Build: [Free]
• Language: [English]

Android:

• Device: [Sony Xperia 1 VI XQ-EC72]
• Version: [14]
• Phone Firmware: [69.0.A.2.38]

Additional info I went to "Device Unlocking" and deleted the encryption keys, then reinstalled the app. I am unsure if this is a bug with KeePass or an issue with the phone's software. It start to happen after some software updates and updates of Keepass. Other apps which using fingerprint works fines.

[J-Jamet]

It seems that some systems break their keystore after an update. Try rebooting your phone or contact SONY.

[elvis-chien]

I have the same device and get the same issue occasionally. Here are some findings:

1. The issue happens only after my phone prompts me to use pin instead of fingerprint to unlock for security reasons 2 or 3 days after I restart it. Other apps don't have the same issue.
2. When the issue happens, it can be fixed by restarting the phone and I can use fingerprint to unlock the database without a problem until my phone prompts me to use pin to unlock again.

[J-Jamet]

This is undoubtedly a problem with your OS. I can't solve the problem from the KeePassDX code.