Constant buzzing/static noise coming from speakers - Help required

[Nos]

Hi All,

I did a couple of firmware upgrades over the weekend and ended up at 5238. Since doing so I have a constant buzzing/static sound coming from my speakers. I have read on another forum that there is a TSB (not sure what this stands for) fix for this issue. Can anyone please advise if they can help?

Starting to think I should have left all well and good alone.

Cheers,

Shayne

[kamold]

First just try a hard reboot of the RNS by pressing Setup + Eject + Info...

[Nos]

Have tried both a soft and hard reset but to no avail, the noise still remains.

[kamold]

Do you have an MDI, or anything plugged into the aux port?
If so unplug any devices/cables from these accessories.

[Nos]

I have an MDI but nothing plugged into the cable. Have yet to use it as my plug has a lightning (from memory) adaptor and hence doesn't fit the cable adaptor that came with the car.

Nevertheless appreciate your help and keep the suggestions coming, hopefully we stumble onto something.

[FJ Steve]

can I ask...where did you get the 5238 version from? (as in website/link etc).

[Polo GTEye N9]

Tinnitus?

[kamold]

Was the RNS factory fitted or retrofit?
If retrofit, I would remove the unit, and reseat the quadlock connector and test.

When you say a couple of firmware updates, what exactly did you do and what version did you start from? Did you have any issues with any of them?

[Nos]

can I ask...where did you get the 5238 version from? (as in website/link etc).

Hi FJ, I followed the 52xx link in firmware update for RNS510 thread on the first page.

[Nos]

Tinnitus?

I could very well be developing a case of!

[Nos]

Was the RNS factory fitted or retrofit?
If retrofit, I would remove the unit, and reseat the quadlock connector and test.

When you say a couple of firmware updates, what exactly did you do and what version did you start from? Did you have any issues with any of them?

Hi Kamold,

The RNS was factory fitted, along with the Dynaudio set-up.

In terms of firmware update I don't know which version I started at. I do know the sound was not existent at this point.

I initially tried to upgrade to 4120, however that failed at 57% of the way through 2 times. I downloaded the SWL recovery which fixed it and enabled the secret menu. I interrogated the unit at that point and confirmed that the unit now had 4120 loaded. Given I was coming down from my state of panic at this stage I wasn’t paying attention to determine if the white noise was coming from my speakers.

I did some more reading and on the same day decided to upgrade to 5238 from the link on the firmware upgrade thread. It all went smoothly and then updated the maps to v8 and POI accordingly. I am pretty sure the buzzing was in the background from that point on but can’t reliably pinpoint when it came about.

[kamold]

Ok I think your coding may have been lost at some point. You need to get hold of someone with vcds and check that the rns is coded for Dynaudio amp.

[Nos]

Great thanks Kamold.

If it is not, how do I get it recoded for the Dynaudio amp? Is it done though the VCDS?
I will PM some of the guys from the VCDS thread.

Cheers!

[kamold]

Yes, coding is done with VCDS.
There are just a few bits to flip that change the outputs and control on the RNS from speaker level output to line level out, volume controlled via the CANbus.
There are a few different settings depending what car it is, and therefor exactly what amp it is.
Check Maverick's guide for the outline

[Nos]

Cheers Kamold.

It's a MY10.5 R36 so will do some reading when I get home tonight. Thanks for the assistance.