# BalenaOS and hardware rev 1.5 of the Pi4

**URL:** <https://forums.balena.io/t/balenaos-and-hardware-rev-1-5-of-the-pi4/352838>\
**Category:** Product support\
**Created:** [February 21, 2022, 10:48pm UTC](https://forums.balena.io/t/balenaos-and-hardware-rev-1-5-of-the-pi4/352838 "2022-02-21T22:48:40Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![rosswesleyporter](https://avatars.discourse-cdn.com/v4/letter/r/bc79bd/32.png) [@rosswesleyporter](https://forums.balena.io/u/rosswesleyporter)\
**Post date:** [February 21, 2022, 10:48pm UTC](https://forums.balena.io/t/balenaos-and-hardware-rev-1-5-of-the-pi4/352838/1 "2022-02-21T22:48:40Z")

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Our friends at Raspberry Pi recently released [hardware rev 1.5](https://forums.raspberrypi.com/viewtopic.php?t=329299) of the Raspberry Pi 4 Model B. We recommend using balenaOS v2.91.1 or later as that contains the updated firmware. BalenaOS v2.75.0+rev1 and earlier will not boot on this hardware revision of the board.

For details, including how to identify if you have hardware rev 1.5, please see [new hardware revision of RPi4](https://www.balena.io/docs/faq/troubleshooting/troubleshooting/#balenaos-boot-issues-with-new-hardware-revision-of-rpi4)

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**Author:** ![dtischler](https://sea2.discourse-cdn.com/balena/user_avatar/forums.balena.io/dtischler/32/2483_2.png) [@dtischler](https://forums.balena.io/u/dtischler)\
**Post date:** [February 21, 2022, 11:22pm UTC](https://forums.balena.io/t/balenaos-and-hardware-rev-1-5-of-the-pi4/352838/2 "2022-02-21T23:22:37Z")

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