Exception: Failed: 04af

I am very new to GitHub,so I want to thank for everyone who contributes this program. Also, English is not my native language, I’m sorry for any misspelled words.

The program complains about 04af error when I was trying to factory resetting my fingerprint driver. Every time after I run the following code sudo python3 /usr/share/python-validity/playground/factory-reset.py -v (no log produced, sudo validity-sensors-firmware runned, python3-validity.service stopped), sudo systemctl status python3-validity.service complains about 04af error. See the attached file for journalctl -u python3-validity.service -b (very long!) log.log You can see it complains about Exception: Failed: 04afwhen I flashing the fingerprint driver. I can not know what the error code mean, and I hope you can troubleshoot the error.

Addition note: I also reset the fingerprint in bios, but it does not work. The fingerprint on ubuntu used to work about 7 months ago, with https://github.com/3v1n0/libfprint/ , but one day I found out it did not work. Until today, I can not figure out why it’s not working. I even reinstall ubuntu, switch to Arch linux and run this program, but still no luck.

The following include my hardware information: OS: ubuntu 20.04 Kernel: 5.13.0-48-generic Host: 20F9A043HH ThinkPad T460s Fingerprint: Bus 001 Device 011: ID 138a:0090 Validity Sensors, Inc. VFS7500 Touch Fingerprint Sensor (via lsusb) DE: Gnome 3.36.8

I thank for everyone who develop this program

[uunicorn]

That’s all right. This topic came up a few times and wanted to write everything up before I forget it.

To finish pairing, you can try this:

• edit /usr/lib/python3/dist-packages/validitysensor/init_flash.py:

diff --git a/validitysensor/init_flash.py b/validitysensor/init_flash.py
index 6cd54ec..7dfd546 100644
--- a/validitysensor/init_flash.py
+++ b/validitysensor/init_flash.py
@@ -40,10 +40,6 @@ crypto_backend = default_backend()
 
 
 def get_partition_signature():
-    if usb.usb_dev().idVendor == 0x138a:
-        if usb.usb_dev().idProduct == 0x0090:
-            return b''
-
     return partition_signature
 
 

• reboot
• go to your BIOS settings and do another factory reset for the fingerprint reader
• boot into Linux, and check the logs (e.g journalctl -u python3-validity.service -b)
• if there are no errors and no python-validity activity for a few minutes, proceed (if you have any concerns at this point, stop here and share the logs)
• remove python-validity, open-fprintd and fprintd-clients packages
• install stock fprintd with @3v1n0 's libfprint fork

[maxso-216]

It’s been a long time, but I finally to get it paired. After decide to upgrading (with formatting) to Ubuntu 22.04, and a fingerprint reset, the program displace no error. But now, validity-sensors-tools -t led-dance displace PY_SSIZE_T_CLEAN macro must be defined for '#' formats error. This is due to python 3.10 changing, and related to validity-sensors-tools. For now, it successfully pair, and bugs solved.