# \#bookworm **URL:** https://community.zymbit.com/tag/bookworm/36.md [Latest](https://community.zymbit.com/latest.md) · [Categories](https://community.zymbit.com/categories.md) · [Tags](https://community.zymbit.com/tags.md) --- ## [403 response on zymkey apt repositories](https://community.zymbit.com/t/403-response-on-zymkey-apt-repositories/1786)
**Author:** [@asdf](https://community.zymbit.com/u/asdf)\ **Replies:** 1\ **Last updated:** [February 5, 2026, 3:11pm UTC](https://community.zymbit.com/t/403-response-on-zymkey-apt-repositories/1786 "2026-02-05T15:11:10Z")
Hi. I am getting a 403 (forbidden) error while trying to add the APT repositories in the zymkey install script. Is this something with my setup/network/country or is there an issue with the AWS host? My setup for conte… --- ## [SCM does not boot after change to config.txt](https://community.zymbit.com/t/scm-does-not-boot-after-change-to-config-txt/1781)
**Author:** [@GlitchGolem](https://community.zymbit.com/u/GlitchGolem)\ **Replies:** 1\ **Last updated:** [August 29, 2025, 3:10pm UTC](https://community.zymbit.com/t/scm-does-not-boot-after-change-to-config-txt/1781 "2025-08-29T15:10:55Z")
Hi. Issue and potentially useful information. I changed the config.txt file of the SCM, more precicely I commented out the line dtoverlay=dwc2,dr\_mode=host in both the \[cm4\] and \[cm5\] section. After restarting the de… --- ## [Invalid engine "zymkey\_ssl" issue](https://community.zymbit.com/t/invalid-engine-zymkey-ssl-issue/1659)
**Author:** [@Spoutnick](https://community.zymbit.com/u/Spoutnick)\ **Replies:** 2\ **Last updated:** [May 13, 2024, 3:17pm UTC](https://community.zymbit.com/t/invalid-engine-zymkey-ssl-issue/1659 "2024-05-13T15:17:13Z")
Hello, I recently bought the HSM 6 and am having an issue with creating a CSR using OpenSSL. The HSM 6 works fine and I have been able to create a key pair in slot 16. The thing is I now want to create a CSR and sign … --- ## [Installation error when installing zk packages on bookworm](https://community.zymbit.com/t/installation-error-when-installing-zk-packages-on-bookworm/1657)
**Author:** [@serhiimi](https://community.zymbit.com/u/serhiimi)\ **Replies:** 2\ **Last updated:** [May 12, 2024, 4:19pm UTC](https://community.zymbit.com/t/installation-error-when-installing-zk-packages-on-bookworm/1657 "2024-05-12T16:19:02Z")
Hi, thank you for bringing such a nice product! I have an zymkey installation question on my rpi 4b with rpi os 12 . When I’m running installation script that you provide in tour manual - it fails with error. The proble… --- ## [Timeouts on tap detect](https://community.zymbit.com/t/timeouts-on-tap-detect/1649)
**Author:** [@beh](https://community.zymbit.com/u/beh)\ **Replies:** 2\ **Last updated:** [March 26, 2024, 8:47pm UTC](https://community.zymbit.com/t/timeouts-on-tap-detect/1649 "2024-03-26T20:47:52Z")
Hi, I am using Zymkey 4i on an RPI 5 and using the C API. I have two threads - one is calling zkWaitForTap with a timeout of 1000 ms and the other is calling zkGetAccelerometerData every 10 seconds in order to collect G … --- ## [How to use the accelerometer and tap detect for perimeter security](https://community.zymbit.com/t/how-to-use-the-accelerometer-and-tap-detect-for-perimeter-security/1647)
**Author:** [@beh](https://community.zymbit.com/u/beh)\ **Replies:** 2\ **Last updated:** [March 18, 2024, 10:59pm UTC](https://community.zymbit.com/t/how-to-use-the-accelerometer-and-tap-detect-for-perimeter-security/1647 "2024-03-18T22:59:59Z")
Hi, Apologies for a newbie question. I have installed and configured my first Zymkey 4i on a Raspberry Pi 5 running Debian Bookworm (Raspberry Pi OS). The Zymkey is up and connected and I have installed the python and C… --- ## [Instructions on installing Zymkey 4i on Raspberry Pi 5](https://community.zymbit.com/t/instructions-on-installing-zymkey-4i-on-raspberry-pi-5/1639)
**Author:** [@beh](https://community.zymbit.com/u/beh)\ **Replies:** 1\ **Last updated:** [March 16, 2024, 8:08pm UTC](https://community.zymbit.com/t/instructions-on-installing-zymkey-4i-on-raspberry-pi-5/1639 "2024-03-16T20:08:06Z")
I am looking for how-to guide/instructions for installing Zymkey 4i on Raspberry Pi 5 running Debian 12 (Raspberry Pi OS). I followed the instructions here ZYMKEY4i: Security Module for Raspberry Pi - Hackster.io but end… --- ## [Added support for Bookworm64 and Raspberry PI5](https://community.zymbit.com/t/added-support-for-bookworm64-and-raspberry-pi5/1623)
**Author:** [@Bob\_of\_Zymbit](https://community.zymbit.com/u/Bob_of_Zymbit)\ **Replies:** 0\ **Last updated:** [January 15, 2024, 11:12pm UTC](https://community.zymbit.com/t/added-support-for-bookworm64-and-raspberry-pi5/1623 "2024-01-15T23:12:00Z")
We have added support for Bookworm (64-bit) on the Pi5, PI4 and CM4 for the ZYMKEY4, HSM4, and HSM6. Follow the Getting Started guides to install and encrypt.