"NO SIGNAL" on Nav screen

huskerdoc2020 · 10-06-2021, 03:13 PM

Hey,
Yesterday was the second time in a couple months where I got the "NO SIGNAL" display on the nav screen. The first time it occurred it would not go away for a good 20 minutes, then the nav kept rebooting itself over and over while I was driving. Finally the next morning I come out to my X7 and all was working. Weird. Last night I came out to the X7 and right away it said that until I started the vehicle. It rebooted once after about 10 min and has worked fine ever since. Anyone else had this? Just kind of annoying.

unfoundnemo · 10-06-2021, 03:53 PM

A fellow M8 owner had what appears to have been a memory fault issue that caused multiple reboots: https://f92.bimmerpost.com/forums/sh...1&postcount=24
Didn't mention the "no signal" message, but if it was coming on between reboots that could make sense. Seems it was solved by reloading the software at the dealer. He's active on the forms and hasn't complained of it since.

Hardware is a possibility as well, if it wasn't for the reboots I would think it's a cable that isn't seated properly, CIC module, etc., but it could be more of a memory or processing issue.

huskerdoc2020 · 10-06-2021, 03:58 PM

Took it in and they put all new software on the vehicle...still did it on the way home. Then they took it back to the dealership and "hooked it up to BMW" for a couple days...They said they had to order a new head unit from Germany. I wonder how long that's going to freaking take?

huskerdoc2020 · 11-09-2021, 07:10 PM

Called them and said it could take at least 6 weeks. Nice.

10-06-2021, 03:13 PM	#1
huskerdoc2020 Captain 383 Rep 841 Posts Drives: BMW X7 Join Date: Nov 2019 Location: U.S.A. iTrader: (0)	"NO SIGNAL" on Nav screen Hey, Yesterday was the second time in a couple months where I got the "NO SIGNAL" display on the nav screen. The first time it occurred it would not go away for a good 20 minutes, then the nav kept rebooting itself over and over while I was driving. Finally the next morning I come out to my X7 and all was working. Weird. Last night I came out to the X7 and right away it said that until I started the vehicle. It rebooted once after about 10 min and has worked fine ever since. Anyone else had this? Just kind of annoying. Attached Images
	Appreciate 0 Tweet Quote

10-06-2021, 03:53 PM	#2
unfoundnemo Colonel 1909 Rep 2,007 Posts Drives: 2022 i4 M50 Join Date: Oct 2017 Location: Pennsylvania iTrader: (0) Garage List 2022 BMW i4 M50 [0.00] 2022 BMW X7 [0.00]	A fellow M8 owner had what appears to have been a memory fault issue that caused multiple reboots: https://f92.bimmerpost.com/forums/sh...1&postcount=24 Didn't mention the "no signal" message, but if it was coming on between reboots that could make sense. Seems it was solved by reloading the software at the dealer. He's active on the forms and hasn't complained of it since. Hardware is a possibility as well, if it wasn't for the reboots I would think it's a cable that isn't seated properly, CIC module, etc., but it could be more of a memory or processing issue. __________________ Current: 2022 i4 M50 \| 2022 G07 X7 Gone: 2020 F92 M8 \| 2020 G07 X7 \| 2018 F80 M3 \| 2017 F15 X5 \| 2016 F16 X6 \| 2015 F36 4 series GC
	Appreciate 0 Quote

10-06-2021, 03:58 PM	#3
huskerdoc2020 Captain 383 Rep 841 Posts Drives: BMW X7 Join Date: Nov 2019 Location: U.S.A. iTrader: (0)	Took it in and they put all new software on the vehicle...still did it on the way home. Then they took it back to the dealership and "hooked it up to BMW" for a couple days...They said they had to order a new head unit from Germany. I wonder how long that's going to freaking take? Last edited by huskerdoc2020; 11-09-2021 at 04:07 PM..
	Appreciate 0 Quote

11-09-2021, 07:10 PM	#4
huskerdoc2020 Captain 383 Rep 841 Posts Drives: BMW X7 Join Date: Nov 2019 Location: U.S.A. iTrader: (0)	Called them and said it could take at least 6 weeks. Nice.
	Appreciate 0 Quote