# How to build firmware?

**URL:** <https://onlykey.discourse.group/t/how-to-build-firmware/1317>\
**Category:** Firmware Loading\
**Created:** [August 3, 2024, 4:12am UTC](https://onlykey.discourse.group/t/how-to-build-firmware/1317 "2024-08-03T04:12:44Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![skratch8four](https://avatars.discourse-cdn.com/v4/letter/s/ee59a6/32.png) [@skratch8four](https://onlykey.discourse.group/u/skratch8four)\
**Post date:** [August 3, 2024, 4:12am UTC](https://onlykey.discourse.group/t/how-to-build-firmware/1317/1 "2024-08-03T04:12:44Z")

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Hi how do I build the firmware?  
Can the CryptoTrust provided firmware file be disassembled?

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**Author:** ![skratch8four](https://avatars.discourse-cdn.com/v4/letter/s/ee59a6/32.png) [@skratch8four](https://onlykey.discourse.group/u/skratch8four)\
**Post date:** [August 10, 2024, 6:23pm UTC](https://onlykey.discourse.group/t/how-to-build-firmware/1317/2 "2024-08-10T18:23:16Z")

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Has anyone ever built the firmware?  
If I need a ‘developer mode’ key to build my own firmware how do I get that?

thanks

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<div class="post-metadata">

**Author:** ![skratch8four](https://avatars.discourse-cdn.com/v4/letter/s/ee59a6/32.png) [@skratch8four](https://onlykey.discourse.group/u/skratch8four)\
**Post date:** [September 20, 2024, 4:22am UTC](https://onlykey.discourse.group/t/how-to-build-firmware/1317/3 "2024-09-20T04:22:02Z")

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well it makes an interesting keychain. dont think i’ll be trusting it.

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**Author:** ![Robert](https://avatars.discourse-cdn.com/v4/letter/r/e95f7d/32.png) [@Robert](https://onlykey.discourse.group/u/Robert)\
**Post date:** [November 27, 2024, 4:59pm UTC](https://onlykey.discourse.group/t/how-to-build-firmware/1317/4 "2024-11-27T16:59:48Z")

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I would also like to look into the firmware and build it myself, is there any way to achieve this?