# V4.0 testing \[was V3.7\]

**URL:** <https://forum.electra.one/t/v4-0-testing-was-v3-7/3219>\
**Category:** Developers\
**Created:** [September 9, 2024, 8:16pm UTC](https://forum.electra.one/t/v4-0-testing-was-v3-7/3219 "2024-09-09T20:16:03Z")\
**Posts on this page:** 1\
**Showing post:** 187

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**Author:** ![martin](https://dub1.discourse-cdn.com/flex017/user_avatar/forum.electra.one/martin/32/145_2.png) [@martin](https://forum.electra.one/u/martin)\
**Post date:** [March 31, 2025, 4:08pm UTC](https://forum.electra.one/t/v4-0-testing-was-v3-7/3219/187 "2025-03-31T16:08:03Z")

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@Mint-Gecko this is corrected version after working with the KnobConnector extensively:

[firmware-v4.0.0p.srec.zip](https://forum.electra.one/uploads/short-url/3Dpui2laJhr2VDpr0YrPbCGC2jp.zip) (2.0 MB)

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