# 1.2.1 Issues and future upgrade to 2.0

**URL:** <https://forum.onefinitycnc.com/t/1-2-1-issues-and-future-upgrade-to-2-0/18880>\
**Category:** Firmware (BB Buildbotics) (Discontinued)\
**Created:** [February 18, 2023, 5:04am UTC](https://forum.onefinitycnc.com/t/1-2-1-issues-and-future-upgrade-to-2-0/18880 "2023-02-18T05:04:52Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![349iq2345](https://avatars.discourse-cdn.com/v4/letter/3/bb73d2/32.png) [@349iq2345](https://forum.onefinitycnc.com/u/349iq2345)\
**Post date:** [February 18, 2023, 6:04pm UTC](https://forum.onefinitycnc.com/t/1-2-1-issues-and-future-upgrade-to-2-0/18880/4 "2023-02-18T18:04:02Z")

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Hey Patrick,

no need to exchange the Raspberry Pi, as explained above. But in case someone would want to, the old back panel of Onefinity Controller won’t fit Pi 4 since connectors positions changed ([see here](https://forum.onefinitycnc.com/t/how-long-will-original-controller-be-available/17882/18)) ([technical drawing](https://forum.onefinitycnc.com/t/2-0-alpha-test-build-1/17401/29)). Also you would need a Mini-HDMI to HDMI adapter.

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