So I read this module has noise issues? Or was that a concrete batch?

I was planning to get one especially because it's stereo but now I'm not so sure.


There's a noise fix on the Endorphin.es website:

https://endorphin.es/endorphin.es--downloads.html


No noise issue with mine bought 2 weeks ago. New firmware was flashed before I test it.
First tests


mine still has crazy high frequenzy noise issues :/
any ideas?