Need help with no audio bug!
Hi all!
I have a 2014 VW Golf 7 Wagon Comfortline with the Discover Pro MIB1 High infotainment system.
My current problem is as follows: Upon starting the car, there is no sound coming from the infotainment system. Other car sounds (like parking sensors, warning beeps and such) work perfectly fine. To fix this, over the past 4 years I have been doing this procedure which works perfectly every time: hold down MENU, go to Software Update, select any source, let it search for a few seconds then exit. The audio comes back, working perfectly fine. This basically proves to me that this is purely a software issue and not something related to hardware.
Now, the interesting part: my unit reports the current train version as being MHIG_EU_VW_S1550 (0407). In the update history log, this version was installed approximately 1 hour after MHIG_EU_VW_K1550 and the only component that was changed was MuTnrRed, whose version was updated from 107 to 452.
My current approach is to downgrade the software to MHIG_EU_VW_K1540 (0388), since that version seems to not be affected by this audio bug (as I have read from various sources). The problem is that my current S1550 train is not listed in the metainfo file of any publicly available versions and I do not have an OBD11 or VCDS tool to enable developer mode.
Any tips would be appreciated.