# Latest **URL:** https://community.zymbit.com/latest.md?page=1 [Latest](https://community.zymbit.com/latest.md) · [Categories](https://community.zymbit.com/categories.md) · [Tags](https://community.zymbit.com/tags.md) **Page:** 2 --- ## [Adding a LoRaWAN Card to your SEN](https://community.zymbit.com/t/adding-a-lorawan-card-to-your-sen/1718)
**Author:** [@davidgs](https://community.zymbit.com/u/davidgs)\ **Replies:** 0\ **Last updated:** [November 22, 2024, 5:24pm UTC](https://community.zymbit.com/t/adding-a-lorawan-card-to-your-sen/1718 "2024-11-22T17:24:44Z")
I’ve written a complete How To Guide on adding a LoRaWAN card to your SEN and using it to send data to The Things Network. I’d love to hear what you think! dg --- ## [What's the battery life on a Zymkey?](https://community.zymbit.com/t/whats-the-battery-life-on-a-zymkey/1716)
**Author:** [@davidgs](https://community.zymbit.com/u/davidgs)\ **Replies:** 0\ **Last updated:** [November 19, 2024, 5:38pm UTC](https://community.zymbit.com/t/whats-the-battery-life-on-a-zymkey/1716 "2024-11-19T17:38:28Z")
We were recently asked the following question: Your datasheet states that the battery life of the zymbit 4i is approx. 2.5years. Is this figure increased if the device is powered? It’s an excellent question! From ou… --- ## [Using an LTE Modem on an SEN](https://community.zymbit.com/t/using-an-lte-modem-on-an-sen/1715)
**Author:** [@davidgs](https://community.zymbit.com/u/davidgs)\ **Replies:** 0\ **Last updated:** [November 19, 2024, 5:28pm UTC](https://community.zymbit.com/t/using-an-lte-modem-on-an-sen/1715 "2024-11-19T17:28:27Z")
I integrated an LTE modem with an SEN a while back, and wrote the whole thing up if you’d like to go read about it. Integrate LTE Modem with Zymbit Node Enjoy! dg --- ## [Camera not detected after rootfs encryption](https://community.zymbit.com/t/camera-not-detected-after-rootfs-encryption/1705)
**Author:** [@c1ph3r](https://community.zymbit.com/u/c1ph3r)\ **Replies:** 1\ **Last updated:** [November 12, 2024, 1:15am UTC](https://community.zymbit.com/t/camera-not-detected-after-rootfs-encryption/1705 "2024-11-12T01:15:37Z")
Hi. I’ve faced unusual problem and for now can’t solve it. Mb someone had similar experience and can share the solution. I’ve installed Zymkey4 as mentioned in official doc (Quickstart - ZYMKEY4 |). Everything works fi… --- ## [Zymkey pinout understanding](https://community.zymbit.com/t/zymkey-pinout-understanding/1708)
**Author:** [@xiglow](https://community.zymbit.com/u/xiglow)\ **Replies:** 2\ **Last updated:** [October 30, 2024, 5:40pm UTC](https://community.zymbit.com/t/zymkey-pinout-understanding/1708 "2024-10-30T17:40:31Z")
I have found two Zymkey pinout schemas: and There are some differences in pins usage, which confuses me. I want to connect Zymkey using jumpers so it would be nice to understand what exactly pins require. Another q… --- ## [Generating a Certificate Signing Request (CSR) Using Zymkey](https://community.zymbit.com/t/generating-a-certificate-signing-request-csr-using-zymkey/537)
**Author:** [@Bob\_of\_Zymbit](https://community.zymbit.com/u/Bob_of_Zymbit)\ **Replies:** 5\ **Last updated:** [October 25, 2024, 9:14am UTC](https://community.zymbit.com/t/generating-a-certificate-signing-request-csr-using-zymkey/537 "2024-10-25T09:14:08Z")
Zymkey can be used as part of the client side TLS transaction against a server that is configured for mutual authentication. A CSR can be generated using Zymkey. This CSR can be used to generate a certificate from a pre… --- ## [Zymkey4 + CM4 + Secure Boot](https://community.zymbit.com/t/zymkey4-cm4-secure-boot/1702)
**Author:** [@c1ph3r](https://community.zymbit.com/u/c1ph3r)\ **Replies:** 3\ **Last updated:** [October 18, 2024, 1:55pm UTC](https://community.zymbit.com/t/zymkey4-cm4-secure-boot/1702 "2024-10-18T13:55:44Z")
Hello community. I have a product board (Raspberry Pi Compute Module 4 + my own board with peripherals) and I must secure the contents. I used Zymkey4, followed the guide how to encrypt rootfs and it works like a charm.… --- ## [Apt update fails on Debian Bullseye](https://community.zymbit.com/t/apt-update-fails-on-debian-bullseye/1698)
**Author:** [@afunix](https://community.zymbit.com/u/afunix)\ **Replies:** 6\ **Last updated:** [October 7, 2024, 10:02pm UTC](https://community.zymbit.com/t/apt-update-fails-on-debian-bullseye/1698 "2024-10-07T22:02:54Z")
Hello. Recently apt update for Bullseye started to fail with expired GPG key: ... Err:6 https://zk-sw-repo.s3.amazonaws.com/apt-repo-bullseye bullseye InRelease The following signatures were invalid: EXPKEYSIG CAA5E9… --- ## [Bootware 1.2 available!](https://community.zymbit.com/t/bootware-1-2-available/1703)
**Author:** [@davidgs](https://community.zymbit.com/u/davidgs)\ **Replies:** 0\ **Last updated:** [October 7, 2024, 4:19pm UTC](https://community.zymbit.com/t/bootware-1-2-available/1703 "2024-10-07T16:19:00Z")
For those of you who have been waiting, we released Bootware 1.2 last week! It’s a major release, with a ton of new features and ease-of-use improvements. A/B updates with cryptographic isolation. Keep devices current … --- ## [Invalid GPG key for apt repo](https://community.zymbit.com/t/invalid-gpg-key-for-apt-repo/1697)
**Author:** [@ptaag](https://community.zymbit.com/u/ptaag)\ **Replies:** 3\ **Last updated:** [October 1, 2024, 7:36am UTC](https://community.zymbit.com/t/invalid-gpg-key-for-apt-repo/1697 "2024-10-01T07:36:35Z")
Hello Zymbit team, Looks like GPG key for apt repo is expired or invalid. I have got an error during run of install\_zk\_sw.sh scirpt: W: GPG error: zk-sw-repo.s3\*\*\*\*\*\*/apt-repo-bookworm-aarch64 bookworm InRelease: The… --- ## [API to get action settings?](https://community.zymbit.com/t/api-to-get-action-settings/1695)
**Author:** [@Billy](https://community.zymbit.com/u/Billy)\ **Replies:** 0\ **Last updated:** [September 29, 2024, 6:32am UTC](https://community.zymbit.com/t/api-to-get-action-settings/1695 "2024-09-29T06:32:56Z")
Secure Edge Node We use python API set\_perimeter\_event\_actions() to configure the actions in SEN box, it works as expected. But I am wondering how can we get to know the current setting? I am looking for an API like ge… --- ## [OpenVPN client using ZYMKEY4](https://community.zymbit.com/t/openvpn-client-using-zymkey4/1693)
**Author:** [@ca9r1](https://community.zymbit.com/u/ca9r1)\ **Replies:** 1\ **Last updated:** [September 27, 2024, 1:49pm UTC](https://community.zymbit.com/t/openvpn-client-using-zymkey4/1693 "2024-09-27T13:49:45Z")
i have a Zymkey4 and am trying to use it with OpenVPN through the PKCS#11 interface. I have configured my OpenVPN client to utilize the Zymkey PKCS#11 provider located at /usr/lib/libzk\_pkcs11.so. Below is a sample of my… --- ## [How you can avoid a Crowdstrike Fiasco](https://community.zymbit.com/t/how-you-can-avoid-a-crowdstrike-fiasco/1680)
**Author:** [@davidgs](https://community.zymbit.com/u/davidgs)\ **Replies:** 0\ **Last updated:** [August 12, 2024, 8:18pm UTC](https://community.zymbit.com/t/how-you-can-avoid-a-crowdstrike-fiasco/1680 "2024-08-12T20:18:19Z")
How you can avoid a Crowdstrike Fiasco --- ## [Zero Trust Network Access (ZTNA) Options](https://community.zymbit.com/t/zero-trust-network-access-ztna-options/1676)
**Author:** [@GMWCTO](https://community.zymbit.com/u/GMWCTO)\ **Replies:** 1\ **Last updated:** [July 22, 2024, 2:05pm UTC](https://community.zymbit.com/t/zero-trust-network-access-ztna-options/1676 "2024-07-22T14:05:30Z")
I’m exploring Zero Trust (ZT) technologies, and found some sound descriptions on the CloudFlare website: What is Zero Trust?. Has Zymbit or AWS (for that matter) provided any insights in how to apply ZT / ZTNA technolog… --- ## [Aws-iot-device-client Integration](https://community.zymbit.com/t/aws-iot-device-client-integration/1673)
**Author:** [@chill](https://community.zymbit.com/u/chill)\ **Replies:** 10\ **Last updated:** [July 22, 2024, 2:01pm UTC](https://community.zymbit.com/t/aws-iot-device-client-integration/1673 "2024-07-22T14:01:13Z")
Hi Team, We are using Zymbit SEN for our project. I noticed that zymbit supports PKCS11, and the AWS IoT device client also supports secure elements. I attempted to use the AWS IoT device client to log in with zymbit’s … --- ## [Error at boot](https://community.zymbit.com/t/error-at-boot/1678)
**Author:** [@Alex1](https://community.zymbit.com/u/Alex1)\ **Replies:** 0\ **Last updated:** [July 15, 2024, 8:38am UTC](https://community.zymbit.com/t/error-at-boot/1678 "2024-07-15T08:38:39Z")
On booting a raspberry PI4 running Bullseye OS, filesystem encrypted with zymkey 4 in production mode, we get this error attached. This is the fourth case that has occurred with approximately twenty installations. H… --- ## [Zkunlockifs on Debian 12 cannot detect zymkey](https://community.zymbit.com/t/zkunlockifs-on-debian-12-cannot-detect-zymkey/1667)
**Author:** [@afunix](https://community.zymbit.com/u/afunix)\ **Replies:** 3\ **Last updated:** [June 27, 2024, 6:26pm UTC](https://community.zymbit.com/t/zkunlockifs-on-debian-12-cannot-detect-zymkey/1667 "2024-06-27T18:26:31Z")
Hello. I’ve recently LUKS-encrypted one of Pi 4B with Debian 12 using Zymkey. Earlier this year there were troubles booting Debian 12 due to change of GPIO numbering. So I have /var/lib/zymbit/zkenv.conf with “ZK\_GPIO\_… --- ## [Raspi PI 4 | Unable to restart after an update ](https://community.zymbit.com/t/raspi-pi-4-unable-to-restart-after-an-update/1645)
**Author:** [@DDSansBulles](https://community.zymbit.com/u/DDSansBulles)\ **Replies:** 1\ **Last updated:** [June 27, 2024, 5:09pm UTC](https://community.zymbit.com/t/raspi-pi-4-unable-to-restart-after-an-update/1645 "2024-06-27T17:09:24Z")
Hello everyone, I’m new to the forum and perhaps the question has already been asked. Here is my problem: Following the latest update, my rasberry no longer starts. The error messages are : segmentation fault Cannot… --- ## [What about lifetime of Zymkey4, HSM 4 and HSM 6](https://community.zymbit.com/t/what-about-lifetime-of-zymkey4-hsm-4-and-hsm-6/1652)
**Author:** [@Spoutnick](https://community.zymbit.com/u/Spoutnick)\ **Replies:** 1\ **Last updated:** [June 27, 2024, 4:58pm UTC](https://community.zymbit.com/t/what-about-lifetime-of-zymkey4-hsm-4-and-hsm-6/1652 "2024-06-27T16:58:27Z")
Hello everyone, I’m currently working on an HSM solution for securing IoT as a school project. The first step is to choose an HSM solution between Zymkey 4, HSM 4 and HSM 6. So, one criteria I’d like to talk about in m… --- ## [Encrypting sd card](https://community.zymbit.com/t/encrypting-sd-card/1671)
**Author:** [@trivettegiacomo](https://community.zymbit.com/u/trivettegiacomo)\ **Replies:** 1\ **Last updated:** [June 18, 2024, 1:01pm UTC](https://community.zymbit.com/t/encrypting-sd-card/1671 "2024-06-18T13:01:57Z")
Hi, i’m trying to encrypt the sd card following your documentation, i run the command: curl -G https://s3.amazonaws.com/zk-sw-repo/mk\_encr\_sd\_rfs.sh | sudo bash that after some time says “Rebooting to installer partition… --- ## [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 … --- ## [Zymkey flash pattern](https://community.zymbit.com/t/zymkey-flash-pattern/1582)
**Author:** [@luku](https://community.zymbit.com/u/luku)\ **Replies:** 4\ **Last updated:** [May 14, 2024, 1:29am UTC](https://community.zymbit.com/t/zymkey-flash-pattern/1582 "2024-05-14T01:29:47Z")
Hello, I have a zymkey on Raspberry Pi 3B+ that worked fine and recently it started o have weird flashing pattern. It flashes 2 slow blink followed by rapid blinks and then repeat this cycle. This doesnt seem like any… --- ## [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… --- ## [Zymkey4 problem with ECDH](https://community.zymbit.com/t/zymkey4-problem-with-ecdh/1551)
**Author:** [@ChrisCCF](https://community.zymbit.com/u/ChrisCCF)\ **Replies:** 2\ **Last updated:** [April 10, 2024, 6:39am UTC](https://community.zymbit.com/t/zymkey4-problem-with-ecdh/1551 "2024-04-10T06:39:33Z")
I think Zymbit should consider to add example for key exchange like the use of ecdh. Now I get running error message with just calling zymkey.client.ecdh(0,0) Error from init.py line 936 dc = (c\_ubyte \* derived\_key\_s… --- ## [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 … --- ## [Encrypting communication between 2 RPIs](https://community.zymbit.com/t/encrypting-communication-between-2-rpis/1642)
**Author:** [@Mr123](https://community.zymbit.com/u/Mr123)\ **Replies:** 3\ **Last updated:** [March 20, 2024, 3:11pm UTC](https://community.zymbit.com/t/encrypting-communication-between-2-rpis/1642 "2024-03-20T15:11:08Z")
I have scattered your forums trying to look for an answer but after having read through Same Encryption key for 2 Zymkeys I was not able to find an answer. In essence, what Im trying to do is to set up a client-server c… --- ## [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… --- ## [Zkunlockifs segfaults preventing Debian (Raspbian) 12 to boot](https://community.zymbit.com/t/zkunlockifs-segfaults-preventing-debian-raspbian-12-to-boot/1635)
**Author:** [@afunix](https://community.zymbit.com/u/afunix)\ **Replies:** 11\ **Last updated:** [March 15, 2024, 3:49am UTC](https://community.zymbit.com/t/zkunlockifs-segfaults-preventing-debian-raspbian-12-to-boot/1635 "2024-03-15T03:49:47Z")
Hello. After some recent update my Raspberry Pi4 with Debian 12 aarch64 won’t boot anymore. The Pi has FDE with Zymkey and it fails to find /dev/mapper/cryptrfs. I read through FDE setup script and tried to run /lib/c… --- ## [Zymkey 4 not working on CURL](https://community.zymbit.com/t/zymkey-4-not-working-on-curl/1476)
**Author:** [@nav1337](https://community.zymbit.com/u/nav1337)\ **Replies:** 4\ **Last updated:** [March 7, 2024, 2:41am UTC](https://community.zymbit.com/t/zymkey-4-not-working-on-curl/1476 "2024-03-07T02:41:33Z")
Hi, I have recently bought the zymkey 4 and installed in on my raspberry Pi. I have successfully created the CSR using openSSL command and created a device certificate in AWS. When I am trying to use CURL to send data u… [Previous page](https://community.zymbit.com/latest.md) [Next page](https://community.zymbit.com/latest.md?page=2)