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US3000C Firmware Versions

coachpotato
in Pylontech

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Hi everyone,

Is there a site or document listing changes and/or any urgent or recommended firmware updates? I see a couple of threads about how to update, the old and new 'chips', some people having issues after a firmware update, etc. but not really a 'if you on version lower than x.x then you should really update to y.y'.

I have four US3000C, two from 2020, one from 2021, and one from 2025. The two from 2020 are v1.3, the one from 2021 is v2.2, and the one from 2025 is v3.0. The installer has always just added the new ones to the bottom, but I'm wondering if those original two need/require an update (good ol v1.3), or the newest one needs to be the master.

I'm considering getting a US3000D and making it the master. If only people would sell some good quality second hand C's down in 'The Village' (PE) 😁

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