[BimmerSI]

Hi,
It happened to me today as well when:

I was programing quick buttons as shortcuts and I wanted to save power and torque meter as a shortcut button. I was in ignition 2 stage but car was not running. Could this be the case to crash the system, because idrive was not able to get information because it was not running?

Btw: iphone 7 plus was connected over BT and playing Spotify app.

I just bought 2014 320d from Germany. I hope it was one time event so I wont have to change NBT.

[soundwave]

2013 F31 320da joining this unfortunate club. The dealer replaced my radio unit once but NO SIGNAL still keeps reappearing about once a month.

[knalpot]

Subbed for Bimmertech

[soundwave]

I had this error with HU_ENTRY and now also with retrofitted HU_NBT + 10,2" screen.

[YeaG30]

I realize I never posted a follow-up to my 2013 post...

Since the second time my entire head unit was replaced, I haven't had any more issues. Its sad to see that this is still a very active issue/problem but I suspect like someone else mentioned, when the system crashes for a multitude of reasons (hardware, software, etc.) the "No Signal" message is displayed.

Being out of warranty, I only hope this issue does not come back around for my car.

[mikeson]

I have same problem on my F15 M-sports package.
I don't know what to do. sigh

[Billfitz]

It's most likely a hardware issue, specifically a cable. You'll probably see the same message on your TV if you disconnect the input cable.

[a803sgo]

HU will need replacing to cure the problem.

[GoodTroll]

Just had this happen for the first time on my 2014 328i. I'm patiently waiting to see if it happens again. Less than 1000 miles left in warranty...

[W0ut]

Have a 2015 F34. Almost 3 years old and 70.000km. I just had the "No Signal" message for the first time.

All standard, no comfort access, no iPhone, EU spec, no custom mods.

What I read I have the impression that this message is part of a reboot sequence. A generic error when the computer crashes,fails or reboots. The BMW equivilant of your TV saying "No HDMI signal"

[DaScud]

Just had this happen on my 2014 X3 that I bought a week ago. Keen on following this thread

[Emme2]

Originally Posted by DaScud

Just had this happen on my 2014 X3 that I bought a week ago. Keen on following this thread

Known issue? Any fix for you?

[DaScud]

Originally Posted by Emme2

Known issue? Any fix for you?

No. Mine only did it once. I updated software and not had an issue

[Emme2]

Originally Posted by DaScud

No. Mine only did it once. I updated software and not had an issue

Lucky you. Mine is still brain dead!

[outriding9800]

2014 X5 here.. had a few times where it would do that but it would always come back after 15 minutes. about a month ago it went out.. took it to the dealer they said it needed a new HU. Now what is interesting yesterday just driving down the road it just started to work and it worked for about 15 minutes then it is back to no signal.

Ugg... Any suggestions.. I am waiting on a call back frrom my SA.. will update later

[chrisdelyon]

I have the same proble no signal, the unit reboot . i have download the file .bin on the site bmw / mini i hzave nbt evo 5. gps professionel, the car is 01/2016.
My car is mini F56 europe. origin germany.
the link enter the vin complet. the file for my cartis about 120mo,
https://www.bmw.com/en/footer/software-updates.html
i try this tomorow, and i will feddback if is ok or no.....

[Emme2]

Any luck outriding9800 and chrisdelyon ?

Intermittent functionality is not necessarily a faulty screen. Could be the antenna...

[IK6SPEED]

Originally Posted by Emme2

Any luck outriding9800 and chrisdelyon ?

Intermittent functionality is not necessarily a faulty screen. Could be the antenna...

Antenna would not cause this.

It's either 1) the cable between HU and CID or 2) the HeadUnit itself.

It can be intermittent (and so a bump returns it working) or totally out.

[Emme2]

We're describing different faults. In the case I mentioned, NO SIGNAL is only at start up. In yours it's during use?

[IK6SPEED]

Originally Posted by Emme2

We're describing different faults. In the case I mentioned, NO SIGNAL is only at start up. In yours it's during use?

Again, NO SIGNAL is a message from the CID that it is getting no signal input from the HU.

[Emme2]

AGAIN - the CID works just fine. "No Signal" at startup is simply a sign that you have no telematics connection to BMW servers. If it were a CID fault, no other function would work or it would work intermittently.

There a million and one error codes, and all not for the same cause/reason.

[IK6SPEED]

Originally Posted by Emme2

AGAIN - the CID works just fine. "No Signal" at startup is simply a sign that you have no telematics connection to BMW servers. If it were a CID fault, no other function would work or it would work intermittently.

There a million and one error codes, and all not for the same cause/reason.

*sigh*

If your explanation were correct, every 2011/2012/2013 CIC F30 in the USA would show up as "NO SIGNAL" as the 2G COMBOX quit working as of 12/31/2016 and 3G will quit working in all pre-2016 cars in the next few months.

NONE of those have or will have a signal to the BMW Servers.

And there will not be a "NO SIGNAL" warning.

I have a 2013 F30 with CIC and 2G COMBOX which hasn't had a connection to BMW Servers since 2016 and I have NEVER had a No Signal on the CID except for when I pull the connector to the HU.

Anyone with a 2011-2013 F3x can tell you that you are incorrect as their CID does not have a constant NO SIGNAL for the last 3 years.

You think Encanto is incorrect. You think I am incorrect.

Next you'll tell BMW that they are incorrect: