# Getting Started: ZYMKEY4i with NVIDIA JETSON **URL:** \ **Category:** Getting Started\ **Tags:** jetson\ **Created:** [August 26, 2020, 7:23pm UTC](https://community.zymbit.com/t/getting-started-zymkey4i-with-nvidia-jetson/936 "2020-08-26T19:23:53Z")\ **Posts on this page:** 15\ **Page:** 1
**Author:** ![Michelle\_of\_Zymbit](https://avatars.discourse-cdn.com/v4/letter/m/5e9695/32.png) [@Michelle\_of\_Zymbit](https://community.zymbit.com/u/Michelle_of_Zymbit)\ **Post date:** [August 26, 2020, 7:23pm UTC](https://community.zymbit.com/t/getting-started-zymkey4i-with-nvidia-jetson/936/1 "2020-08-26T19:23:53Z")
See [Zymbit’s Documentation Site](https://docs.zymbit.com/quickstart/getting-started/zymkey4/) for the most recent Getting Started documentation. ---
**Author:** ![Michelle\_of\_Zymbit](https://avatars.discourse-cdn.com/v4/letter/m/5e9695/32.png) [@Michelle\_of\_Zymbit](https://community.zymbit.com/u/Michelle_of_Zymbit)\ **Post date:** [August 27, 2020, 10:51pm UTC](https://community.zymbit.com/t/getting-started-zymkey4i-with-nvidia-jetson/936/3 "2020-08-27T22:51:22Z")
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**Author:** ![Michelle\_of\_Zymbit](https://avatars.discourse-cdn.com/v4/letter/m/5e9695/32.png) [@Michelle\_of\_Zymbit](https://community.zymbit.com/u/Michelle_of_Zymbit)\ **Post date:** [August 27, 2020, 10:52pm UTC](https://community.zymbit.com/t/getting-started-zymkey4i-with-nvidia-jetson/936/4 "2020-08-27T22:52:14Z")
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**Author:** ![rapidproto](https://avatars.discourse-cdn.com/v4/letter/r/7ea924/32.png) [@rapidproto](https://community.zymbit.com/u/rapidproto)\ **Post date:** [September 27, 2020, 11:39pm UTC](https://community.zymbit.com/t/getting-started-zymkey4i-with-nvidia-jetson/936/5 "2020-09-27T23:39:53Z")
Hi, is there a performance hit when using encryption on sd card. Is encryption done by passing data through the key, or does zymkey load an application to encrypt/decrypt on Nano CPU ---
**Author:** ![iarribillaga](https://avatars.discourse-cdn.com/v4/letter/i/a9a28c/32.png) [@iarribillaga](https://community.zymbit.com/u/iarribillaga)\ **Post date:** [June 24, 2021, 9:00am UTC](https://community.zymbit.com/t/getting-started-zymkey4i-with-nvidia-jetson/936/6 "2021-06-24T09:00:53Z")
Hi, can I use this device to encrypt a micro sd card on Jetson Nano with Jetpack 4.4.1? ---
**Author:** ![Bob\_of\_Zymbit](https://avatars.discourse-cdn.com/v4/letter/b/82dd89/32.png) [@Bob\_of\_Zymbit](https://community.zymbit.com/u/Bob_of_Zymbit)\ **Post date:** [June 24, 2021, 1:27pm UTC](https://community.zymbit.com/t/getting-started-zymkey4i-with-nvidia-jetson/936/7 "2021-06-24T13:27:37Z")
Yes, encrypting the SD card on the Nano at 4.4.1 is supported. ---
**Author:** ![iarribillaga](https://avatars.discourse-cdn.com/v4/letter/i/a9a28c/32.png) [@iarribillaga](https://community.zymbit.com/u/iarribillaga)\ **Post date:** [June 25, 2021, 6:16am UTC](https://community.zymbit.com/t/getting-started-zymkey4i-with-nvidia-jetson/936/8 "2021-06-25T06:16:37Z")
And what about jetpack 4.5.1? ---
**Author:** ![Bob\_of\_Zymbit](https://avatars.discourse-cdn.com/v4/letter/b/82dd89/32.png) [@Bob\_of\_Zymbit](https://community.zymbit.com/u/Bob_of_Zymbit)\ **Post date:** [June 28, 2021, 8:57pm UTC](https://community.zymbit.com/t/getting-started-zymkey4i-with-nvidia-jetson/936/9 "2021-06-28T20:57:21Z")
Encryption with Jetpack 4.5.1 is currently not supported. Someone from our customer support team will be in touch to discuss your needs. ---
**Author:** ![iarribillaga](https://avatars.discourse-cdn.com/v4/letter/i/a9a28c/32.png) [@iarribillaga](https://community.zymbit.com/u/iarribillaga)\ **Post date:** [June 29, 2021, 7:03am UTC](https://community.zymbit.com/t/getting-started-zymkey4i-with-nvidia-jetson/936/10 "2021-06-29T07:03:08Z")
Okay, thanks. I’m good for now but if I need more help I won’t hesitate contacting you! ---
**Author:** ![iarribillaga](https://avatars.discourse-cdn.com/v4/letter/i/a9a28c/32.png) [@iarribillaga](https://community.zymbit.com/u/iarribillaga)\ **Post date:** [June 30, 2021, 6:07am UTC](https://community.zymbit.com/t/getting-started-zymkey4i-with-nvidia-jetson/936/11 "2021-06-30T06:07:51Z")
I need some help Bob. After running the script: curl -G [https://s3.amazonaws.com/zk-sw-repo/mk\_encr\_sd\_rfs.sh](https://s3.amazonaws.com/zk-sw-repo/mk_encr_sd_rfs.sh) | sudo bash My Jetson Nano enters a boot loop state where the NVIDIA screen shows on and off infinitely. What can I do? ---
**Author:** ![Bob\_of\_Zymbit](https://avatars.discourse-cdn.com/v4/letter/b/82dd89/32.png) [@Bob\_of\_Zymbit](https://community.zymbit.com/u/Bob_of_Zymbit)\ **Post date:** [June 30, 2021, 4:48pm UTC](https://community.zymbit.com/t/getting-started-zymkey4i-with-nvidia-jetson/936/12 "2021-06-30T16:48:20Z")
This can happen if you downgrade from 4.5.1 to 4.4.1 by just loading a new image from the SD card. 4.5.1 moves the bootloader area. Instead of loading from an SD card image, you need to load 4.4.1 from the NVIDIA SDK Manager Method. I’ll follow up with you directly through support. ---
**Author:** ![iarribillaga](https://avatars.discourse-cdn.com/v4/letter/i/a9a28c/32.png) [@iarribillaga](https://community.zymbit.com/u/iarribillaga)\ **Post date:** [July 1, 2021, 9:47am UTC](https://community.zymbit.com/t/getting-started-zymkey4i-with-nvidia-jetson/936/13 "2021-07-01T09:47:45Z")
After flashing the jetson with the SDK manager it seems to be working fine. Thanks! ---
**Author:** ![Mikel](https://avatars.discourse-cdn.com/v4/letter/m/e480ec/32.png) [@Mikel](https://community.zymbit.com/u/Mikel)\ **Post date:** [July 15, 2021, 10:43am UTC](https://community.zymbit.com/t/getting-started-zymkey4i-with-nvidia-jetson/936/14 "2021-07-15T10:43:33Z")
Hi there, I have executed the installation script successfully (zkifc service is active and running also) but zymkey keeps blinding rapidly and consistently and example scripts don’t work (AttributeError: ‘NoneType’ object has no attribute ‘sign’) Any suggestion? Thanks Mikel ---
**Author:** ![user7498375486578436](https://avatars.discourse-cdn.com/v4/letter/u/cc9497/32.png) [@user7498375486578436](https://community.zymbit.com/u/user7498375486578436)\ **Post date:** [July 28, 2021, 1:03pm UTC](https://community.zymbit.com/t/getting-started-zymkey4i-with-nvidia-jetson/936/15 "2021-07-28T13:03:36Z")
@Bob_of_Zymbit Is Jetpack 4.5.1 supported yet? ---
**Author:** ![Michelle\_of\_Zymbit](https://avatars.discourse-cdn.com/v4/letter/m/5e9695/32.png) [@Michelle\_of\_Zymbit](https://community.zymbit.com/u/Michelle_of_Zymbit)\ **Post date:** [August 24, 2021, 5:28pm UTC](https://community.zymbit.com/t/getting-started-zymkey4i-with-nvidia-jetson/936/16 "2021-08-24T17:28:34Z")