I have no experience with D4 and it's probably not your issue but I know that 3 cards do not work with old phones as 3 is only 3/4/5G and 3G only works on 2100Mhz, not 900MHz and no 2G at all.

GiffGaff that runs on O2 network on the other hand has worked in anything I could throw at it including factory handset in my old 1997 S8. If you are not using it much you just fill it up with credit instead of GoodyBags and it lasts forever, I have had it for several years just as a backup and still have £9.66 left from the £10 initial topup. Obviously it would drain much more quickly if using it for data daily as it is 5p/MB.

Another option could be https://www.1pmobile.com/ that runs on EE network 1p/MB which does 2G but only 2100MHz 3G, not 900MHz 3G or if car uses more data you can get Vodafone Basic 8GB https://www.vodafone.co.uk/shop/bund...2e8c007648afor £10 per month which works 2G and 900/2100MHz 3G. If you are lucky enough to have newer modem in phone module it should work on 4G as well but considering it does not work on 3, it's probably older 3G modem

Thanks mate. I got the 3 sim as it gives 200mb free every month with initial £5 and registration. Also it allows use in Europe. Will need to see what the issue is, might have to contact them and see if the can issue a 3g specific sim. Thanks

3 don't have thre correct spectrum for the 3g modem in thre early D4 cars, they also don't have a 2g network to fall back on.

Choices are a hardware change on the 5f unit on thre car, or a different mobile network (y)

My d4 is the late 2014 so is the facelift. Would that make any difference?

Possibly. It's been a few years since I looked at it in detail, but it likely rules out a hardware upgrade for the car as you will already have the later modem.

The fundamental issue is that mobile operators have limited spectrum to play with, as 4g and 5g are deployed they tend to retire 3g to free up the spectrum, sadly cars are not represented replaced as quickly as phones.

To that end most big networks plan to keep 2g service for a number of years, as it is still the best for penetration. 3 don't have that option as they never had a 2g network.

I'd try a different SIM, suspect it will just work.... if not, you will have lost a tenner max ;)

Yeah cheers pal.

I am using ID without any problems.
ID runs on the back of EE.


I'm using a £10 a month contract

Just had Neel over to check it out. Unfortunately vcds could not pick anything up as error, we also tried his sim from his car. Still no joy. My sim works in his car so either the SW needs updating as I am on factory SW???

On a 2014 it should work out of the box :Confused:

Out of interest, what network was his SIM on?

His one is on EE. My 3 worked on his one too:Confused: thinking might have to clean the sim but with forced air or something. The SD slot works as we tried one of his too.