# Custom firmware build issue

**URL:** https://marlin.crc.id.au/forum/t/custom-firmware-build-issue/1816
**Category:** Firmware Builder
**Created:** [27 June 2023 06:29 UTC](https://marlin.crc.id.au/forum/t/custom-firmware-build-issue/1816 "2023-06-27T06:29:10Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![Sergejs\_Aktuganovs](https://marlin.crc.id.au/forum/user_avatar/marlin.crc.id.au/sergejs_aktuganovs/32/911_2.png) [@Sergejs\_Aktuganovs](https://marlin.crc.id.au/forum/u/Sergejs_Aktuganovs)
#### Post date: [27 June 2023 06:29 UTC](https://marlin.crc.id.au/forum/t/custom-firmware-build-issue/1816/1 "2023-06-27T06:29:10Z")

</div>

Hallo. I just upgraded my Ender 3 V2 (v:4.2.2) with a sprite pro extruded. After hardware assembly I wanted to get a new firmware. Several times I was trying create a new firmware but it always result to some error. Need help 😅