# Latest **URL:** https://community.zymbit.com/latest.md [Latest](https://community.zymbit.com/latest.md) · [Categories](https://community.zymbit.com/categories.md) · [Tags](https://community.zymbit.com/tags.md) --- ## [Welcome to the Community!](https://community.zymbit.com/t/welcome-to-the-community/1688)
**Author:** [@davidgs](https://community.zymbit.com/u/davidgs)\ **Replies:** 0\ **Last updated:** [September 11, 2024, 7:40pm UTC](https://community.zymbit.com/t/welcome-to-the-community/1688 "2024-09-11T19:40:17Z")
Welcome to the Zymbit Community! We are so glad you’re here. We are here to answer all of your Bootware questions. In order to best answer your questions, it’s important to think carefully about how you ask your questio… --- ## [Welcome to the Community](https://community.zymbit.com/t/welcome-to-the-community/1687)
**Author:** [@davidgs](https://community.zymbit.com/u/davidgs)\ **Replies:** 0\ **Last updated:** [September 11, 2024, 7:38pm UTC](https://community.zymbit.com/t/welcome-to-the-community/1687 "2024-09-11T19:38:20Z")
Welcome to the Zymbit Community! We are so glad you’re here. We are here to answer all of your Bootware questions. In order to best answer your questions, it’s important to think carefully about how you ask your questio… --- ## [Is it possible to store an update image on the Raspberry Pi's main microSD card?](https://community.zymbit.com/t/is-it-possible-to-store-an-update-image-on-the-raspberry-pis-main-microsd-card/1787)
**Author:** [@jsm](https://community.zymbit.com/u/jsm)\ **Replies:** 2\ **Last updated:** [September 23, 2026, 1:50pm UTC](https://community.zymbit.com/t/is-it-possible-to-store-an-update-image-on-the-raspberry-pis-main-microsd-card/1787 "2026-09-23T13:50:42Z")
I have a use-case for the Zymkey 4 with a Raspberry Pi 4B where the “pull the update over the internet” option is impossible, and the “store it on external mass storage” option is undesirable. In the documentation and s… --- ## [Zymkey not working on trixie deb 13](https://community.zymbit.com/t/zymkey-not-working-on-trixie-deb-13/1791)
**Author:** [@what\_username](https://community.zymbit.com/u/what_username)\ **Replies:** 1\ **Last updated:** [July 11, 2026, 8:44pm UTC](https://community.zymbit.com/t/zymkey-not-working-on-trixie-deb-13/1791 "2026-07-11T20:44:18Z")
Hi, I’m running raspbian trixie on debian 13. The install script install\_zk\_sw.sh isn’t working for the zymkey4. Can you add support? --- ## [OpenSSL Error When Trying to Install Bootware zbcli tool on SEN-400 with Bullseye](https://community.zymbit.com/t/openssl-error-when-trying-to-install-bootware-zbcli-tool-on-sen-400-with-bullseye/1789)
**Author:** [@Matt](https://community.zymbit.com/u/Matt)\ **Replies:** 0\ **Last updated:** [March 30, 2026, 2:56pm UTC](https://community.zymbit.com/t/openssl-error-when-trying-to-install-bootware-zbcli-tool-on-sen-400-with-bullseye/1789 "2026-03-30T14:56:35Z")
I’m trying to install the zbcli Bootware management tool on my SEN-400 running Bullseye and it keep complaining that I don’t have OpenSSL 3 installed (this is expected because there is no OpenSSL 3 for Bullseye) This is… --- ## [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… --- ## [Pi OS Support (Pi Zero)](https://community.zymbit.com/t/pi-os-support-pi-zero/1782)
**Author:** [@apollo10](https://community.zymbit.com/u/apollo10)\ **Replies:** 0\ **Last updated:** [October 7, 2025, 9:38am UTC](https://community.zymbit.com/t/pi-os-support-pi-zero/1782 "2025-10-07T09:38:23Z")
Hi, Set up a new Pi Zero in the last week with Trixie OS - is there going to be support for this? I am getting a python error when installing the driver package. If not could you tell me the most recent OS you support fo… --- ## [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… --- ## [CM5 with Ubuntu Plucky Support](https://community.zymbit.com/t/cm5-with-ubuntu-plucky-support/1780)
**Author:** [@l4z41](https://community.zymbit.com/u/l4z41)\ **Replies:** 0\ **Last updated:** [July 28, 2025, 11:31am UTC](https://community.zymbit.com/t/cm5-with-ubuntu-plucky-support/1780 "2025-07-28T11:31:15Z")
Please support newer Ubuntu server version 25.04 codename plucky on Raspberry Pi Compute Module 5. I was able to update the install script which is attached for reference but you are not offering any packages in apt repo… --- ## [Zymkey 4i: zkifc Running but No Response from zkifc status on 64-bit (aarch64) Raspberry Pi OS — Wallet Setup Blocked](https://community.zymbit.com/t/zymkey-4i-zkifc-running-but-no-response-from-zkifc-status-on-64-bit-aarch64-raspberry-pi-os-wallet-setup-blocked/1778)
**Author:** [@research](https://community.zymbit.com/u/research)\ **Replies:** 0\ **Last updated:** [July 1, 2025, 12:39pm UTC](https://community.zymbit.com/t/zymkey-4i-zkifc-running-but-no-response-from-zkifc-status-on-64-bit-aarch64-raspberry-pi-os-wallet-setup-blocked/1778 "2025-07-01T12:39:45Z")
In the above OS Architecture supports aarch64 :cross\_mark: 64-bit — NOT SUPPORTED by Zymkey software Is it supports - armv7l :white\_check\_mark: OK (32-bit) Based on the above process, I trying this cmd sudo system… --- ## [PI5 with ubuntu noble support](https://community.zymbit.com/t/pi5-with-ubuntu-noble-support/1723)
**Author:** [@bert](https://community.zymbit.com/u/bert)\ **Replies:** 13\ **Last updated:** [June 24, 2025, 12:02am UTC](https://community.zymbit.com/t/pi5-with-ubuntu-noble-support/1723 "2025-06-24T00:02:53Z")
Hi, I am trying to install the zymkey on my PI5 running ubuntu 24.04 (noble), without success. The pairing does not complete, the light stay blinking in high frequency. The zymkey itself is working. I tried it on a PI… --- ## [PKCS#11 Support](https://community.zymbit.com/t/pkcs-11-support/607)
**Author:** [@Bob\_of\_Zymbit](https://community.zymbit.com/u/Bob_of_Zymbit)\ **Replies:** 20\ **Last updated:** [June 6, 2025, 1:17pm UTC](https://community.zymbit.com/t/pkcs-11-support/607 "2025-06-06T13:17:25Z")
PKCS#11 support for Zymkey is now available from our main repo for Raspbian Jessie/Stretch/Buster and Ubuntu Bionic 64-bit. This package is called zkpkcs11 and can be installed on existing installations with: sudo apt -… --- ## [Remapping GPIO4 to something else](https://community.zymbit.com/t/remapping-gpio4-to-something-else/1762)
**Author:** [@Robrad](https://community.zymbit.com/u/Robrad)\ **Replies:** 1\ **Last updated:** [May 21, 2025, 8:59am UTC](https://community.zymbit.com/t/remapping-gpio4-to-something-else/1762 "2025-05-21T08:59:03Z")
Hi, Is there a particular point in the setup sequence where the GPIO remapping needs to be performed for a zymkey 4 (on RPi4B)? That is, having installed the drivers and used the GPIO4 default to successfully encrypt a… --- ## [Disabling Perimeter Detect](https://community.zymbit.com/t/disabling-perimeter-detect/1760)
**Author:** [@iainigs](https://community.zymbit.com/u/iainigs)\ **Replies:** 0\ **Last updated:** [May 19, 2025, 4:33pm UTC](https://community.zymbit.com/t/disabling-perimeter-detect/1760 "2025-05-19T16:33:56Z")
I’d like a bit of guidance - and maybe to suggest that the docs could be improved. Looking at the perimeter detect section of the zymkey docs, the suggestion is that some python is ran to clear it. What’s confusing me i… --- ## [Error when installing python packages](https://community.zymbit.com/t/error-when-installing-python-packages/1757)
**Author:** [@iainigs](https://community.zymbit.com/u/iainigs)\ **Replies:** 2\ **Last updated:** [May 16, 2025, 12:49pm UTC](https://community.zymbit.com/t/error-when-installing-python-packages/1757 "2025-05-16T12:49:44Z")
When I run the setup script (curl -G https://s3.amazonaws.com/zk-sw-repo/install\_zk\_sw.sh | sudo bash) I get the following errors at the python/pip install stages: no such option: --break-system-packages See below for … --- ## [Bootware Release Notes](https://community.zymbit.com/t/bootware-release-notes/1758)
**Author:** [@Bob\_of\_Zymbit](https://community.zymbit.com/u/Bob_of_Zymbit)\ **Replies:** 0\ **Last updated:** [May 12, 2025, 4:21pm UTC](https://community.zymbit.com/t/bootware-release-notes/1758 "2025-05-12T16:21:47Z")
Register for email notification of Bootware Technical Updates here: Bootware Registration April 2025 NOTICE (3/31/2025): Changes from the Pi foundation to the Pi5/CM5 firmware from last week are incompatible with … --- ## [Libzymkeyssl upgrade fails](https://community.zymbit.com/t/libzymkeyssl-upgrade-fails/1747)
**Author:** [@afunix](https://community.zymbit.com/u/afunix)\ **Replies:** 0\ **Last updated:** [March 31, 2025, 12:49pm UTC](https://community.zymbit.com/t/libzymkeyssl-upgrade-fails/1747 "2025-03-31T12:49:44Z")
One of Pi’s on Debian failed to upgrade libzymkeyssl: # dpkg --configure -a Setting up libzymkeyssl (1.0-12) ... /var/lib/dpkg/info/libzymkeyssl.postinst: line 5: \[: /usr/lib/arm-linux-gnueabihf/engines-1.1: binary oper… --- ## [Encrypt From External USB](https://community.zymbit.com/t/encrypt-from-external-usb/1745)
**Author:** [@ubu\_whell](https://community.zymbit.com/u/ubu_whell)\ **Replies:** 0\ **Last updated:** [March 17, 2025, 9:23pm UTC](https://community.zymbit.com/t/encrypt-from-external-usb/1745 "2025-03-17T21:23:52Z")
Creating a new topic off of this one. For reference: Raspberry Pi 4b Ubuntu Desktop 22.04 ZYMKEY4 1x 64GB main SD card 1x 112GB external storage via USB The documentation on encrypting an SD card mentions the followi… --- ## [Encrypting from USB image](https://community.zymbit.com/t/encrypting-from-usb-image/1529)
**Author:** [@tennisparty](https://community.zymbit.com/u/tennisparty)\ **Replies:** 5\ **Last updated:** [March 17, 2025, 8:57pm UTC](https://community.zymbit.com/t/encrypting-from-usb-image/1529 "2025-03-17T20:57:12Z")
Hello, I have successfully encrypted an SD card with a USB and zymbit with this command - curl -G https://s3.amazonaws.com/zk-sw-repo/mk\_encr\_sd\_rfs.sh | sudo bash from https://docs.zymbit.com/tutorials/encrypt-rfs/ … --- ## [Zimkey4 fails tests after installing/configuring Camera and OLED Display drivers](https://community.zymbit.com/t/zimkey4-fails-tests-after-installing-configuring-camera-and-oled-display-drivers/1741)
**Author:** [@syncrasy](https://community.zymbit.com/u/syncrasy)\ **Replies:** 0\ **Last updated:** [March 4, 2025, 4:00pm UTC](https://community.zymbit.com/t/zimkey4-fails-tests-after-installing-configuring-camera-and-oled-display-drivers/1741 "2025-03-04T16:00:05Z")
Hi, i’m having trouble getting Zibkey4 to work with Pi5 8Gb latest OS with latest updates Bookworm (latest), i2c enabled using raspi-config: ls -l /dev/i2c\* crw-rw---- 1 root i2c 89, 0 Mar 4 15:14 /dev/i2c-0 crw-r… --- ## [RPi Zero 2 W + HSM4 Qs](https://community.zymbit.com/t/rpi-zero-2-w-hsm4-qs/1738)
**Author:** [@Strykar](https://community.zymbit.com/u/Strykar)\ **Replies:** 0\ **Last updated:** [February 21, 2025, 8:25pm UTC](https://community.zymbit.com/t/rpi-zero-2-w-hsm4-qs/1738 "2025-02-21T20:25:54Z")
I was evaluating tiny, low power SoCs that could run a simple Web3 Go application and even run unattended on solar when I came across the Zymkey4 - an amazing solution for storing valuable crypto keys on an RPi Zero with… --- ## [Greengrass scripts fail on brand new Zymkey 4i](https://community.zymbit.com/t/greengrass-scripts-fail-on-brand-new-zymkey-4i/1733)
**Author:** [@techiemac](https://community.zymbit.com/u/techiemac)\ **Replies:** 1\ **Last updated:** [February 11, 2025, 10:21pm UTC](https://community.zymbit.com/t/greengrass-scripts-fail-on-brand-new-zymkey-4i/1733 "2025-02-11T22:21:27Z")
I’m following the instructions here: https://docs.zymbit.com/tutorials/aws-iot/greengrass/Zymkey%20Getting%20Started%20Guide%20for%20AWS%20IoT%20Greengrass%20Devices\_1.1.pdf I also commented out the line that installs t… --- ## [Getting Started: ZYMKEY4i with RPI 4B Buster ARM 64 - Unable to locate package zkbootrtc](https://community.zymbit.com/t/getting-started-zymkey4i-with-rpi-4b-buster-arm-64-unable-to-locate-package-zkbootrtc/1244)
**Author:** [@joncmlaoney](https://community.zymbit.com/u/joncmlaoney)\ **Replies:** 6\ **Last updated:** [February 11, 2025, 6:46pm UTC](https://community.zymbit.com/t/getting-started-zymkey4i-with-rpi-4b-buster-arm-64-unable-to-locate-package-zkbootrtc/1244 "2025-02-11T18:46:05Z")
Hi, I’m running rapios-buster-arm64-lite 2021-05-07 and am going through the getting started guide. When running the install script it seems to fail silently during step. After a quick investigation i’ve found it fails… --- ## [Error in apt update on Debian 12 - Raspberry Pi 5](https://community.zymbit.com/t/error-in-apt-update-on-debian-12-raspberry-pi-5/1731)
**Author:** [@beh](https://community.zymbit.com/u/beh)\ **Replies:** 1\ **Last updated:** [January 27, 2025, 5:49pm UTC](https://community.zymbit.com/t/error-in-apt-update-on-debian-12-raspberry-pi-5/1731 "2025-01-27T17:49:15Z")
Hi, I am running a few RPI5 with Debian 12 using Zymkey 4. Recently, when I run apt update, I get an error from zk-sw-repo.s3.amazonaws.com/apt-repo-bookworm-aarch64. It says “The following signatures are invalid: EXPKE… --- ## [Still Zymkey flashing after installation](https://community.zymbit.com/t/still-zymkey-flashing-after-installation/1725)
**Author:** [@mnm](https://community.zymbit.com/u/mnm)\ **Replies:** 15\ **Last updated:** [January 16, 2025, 8:55am UTC](https://community.zymbit.com/t/still-zymkey-flashing-after-installation/1725 "2025-01-16T08:55:56Z")
Im new to IoT devices, Pls help me to get this work First i installed the services by following steps in documentation RPI restarted after installation, but Zymkey still flashes rapidly which indicated not bound correc… --- ## [Cannot use on 8TB NVME drive](https://community.zymbit.com/t/cannot-use-on-8tb-nvme-drive/1728)
**Author:** [@crab](https://community.zymbit.com/u/crab)\ **Replies:** 4\ **Last updated:** [January 9, 2025, 11:02am UTC](https://community.zymbit.com/t/cannot-use-on-8tb-nvme-drive/1728 "2025-01-09T11:02:43Z")
I have an 8TB NVME drive attached to the pi 5 via the Pimoroni hat. The 4i won’t allow me to use it as the temporary storage device: sudo bash mk\_encr\_sd\_rfs.sh -x /dev/nvme0n1 Hit:1 http://deb.debian.org/debian bookwo… --- ## [Fingerprint components when booting from encrypted USB storage](https://community.zymbit.com/t/fingerprint-components-when-booting-from-encrypted-usb-storage/1235)
**Author:** [@jsgarvin](https://community.zymbit.com/u/jsgarvin)\ **Replies:** 2\ **Last updated:** [January 8, 2025, 11:24pm UTC](https://community.zymbit.com/t/fingerprint-components-when-booting-from-encrypted-usb-storage/1235 "2025-01-08T23:24:21Z")
Everything I’ve found suggests that the zymkey derives the “fingerprint” for the device id /authentication from the host computer and the SD card serial numbers. However, … What if the pi is booting from encrypted US… --- ## [Zymkey doesnt bind properly](https://community.zymbit.com/t/zymkey-doesnt-bind-properly/1633)
**Author:** [@Mr123](https://community.zymbit.com/u/Mr123)\ **Replies:** 14\ **Last updated:** [March 18, 2024, 8:57pm UTC](https://community.zymbit.com/t/zymkey-doesnt-bind-properly/1633 "2024-03-18T20:57:15Z")
Using Zymkey 4i / Raspberry Pi 4 Model B After enabling I2C and running the curl -G https://s3.amazonaws.com/zk-sw-repo/install\_zk\_sw.sh | sudo bash command my Raspberry Pi rebooted but the zymkey is still blinking blue… --- ## [Date --set makes zkifc babbling](https://community.zymbit.com/t/date-set-makes-zkifc-babbling/1674)
**Author:** [@Billy](https://community.zymbit.com/u/Billy)\ **Replies:** 8\ **Last updated:** [December 24, 2024, 1:28am UTC](https://community.zymbit.com/t/date-set-makes-zkifc-babbling/1674 "2024-12-24T01:28:07Z")
I found a issue in secure edge node d35, when perform ‘date --set hhhh-mm-dd’ in console to change the system time, zkifc service will start to print in syslog very quickly and will not stop: Jul 1 15:44:28 zkifc\[923\]:… --- ## [Encrypting without NTP](https://community.zymbit.com/t/encrypting-without-ntp/1713)
**Author:** [@aneum](https://community.zymbit.com/u/aneum)\ **Replies:** 10\ **Last updated:** [November 25, 2024, 5:02pm UTC](https://community.zymbit.com/t/encrypting-without-ntp/1713 "2024-11-25T17:02:44Z")
Hello! We’re currently investigating the use of the Zymkey 4i for encrypting our Linux rootfs on an RPi CM3+. Previous investigations during Ubuntu 20.04 times showed it would be possible to just generate a locked key f… [Next page](https://community.zymbit.com/latest.md?page=1)