Rudy's problems with a soundbar Infiniti pro 2.1

Hello folks,

I am writing this to help a German customer named Rudy (Not old Willy :joy: )

He got probs with a kind of delay.

Connecting :

soundcore Infiniti pro 2.1 serial number ACFQWP0938300174, firmware Version 28.27

connected via


to a TV

TCL 65 C 715 QLED

I don’t own such a “toy”,
so I have some stupid questions I am asking for Rudy:

Is this the latest firmware of this device?
Should he try another connection? (cable) etc.
Or what else can Rudy do?
Thanks for help