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Old 03-22-2015, 07:44 AM
osc osc is offline
Join Date: Mar 2015
Location: London
Posts: 3
osc is on a distinguished road
"Activate phone" message after TCU retrofit

I have a 2000 e38 (UK spec) with the OEM Nokia 3110 wired handset. I have bought a GSM TCU to upgrade to bluetooth pairing with any mobile handset. (84106965055 - it's on the compatible list.)

The old phone module has a 54 pin connector, but the pins need re-configuring for the new TCU. I selected a TCU (vs ULF) so I wouldn't need a paring button to simplify the install.

There is no SES installed, but I don't want the voice activation. And no phone cradle.

I connected to the TEL module using scanner and I can communicate with it. I've changed the TEL VIN to match my car, checked for errors (none), can see there are no paired devices.

The old system had a compensator - this is currently disconnected - but do I need to wire this in?

I still need to connect the BT antenna, but I'm not sure which of the three connections to use. Although, it seems that the phone should connect without the antenna if in close approximately. Any advise on which colours need to be connected to which antenna - on the TCU I have cream, purple and black?

When I press the R/T button on the steering wheel (or the TEL button on the MID) then I get the "Activate Phone" message appearing in the MID display. I just can't get it to pair with my phone. Any tips on what to try next?
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Old 03-22-2015, 10:20 AM
Join Date: Oct 2014
Location: RI
Posts: 141
E38flagship is on a distinguished road
The activate phone is basically putting your car into Bluetooth discorvery mode just like you would on your phone. Now you go on your phone and go to BT discorvery and you will see bmw with some numbers click that, now it's going to prompt you for your 4 digit pin this number can be found on your Bluetooth module it will say "pk" then your 4 digit code
-e24 m6
-e32 740/5
-e34 525it
-e83 Msport (gf)
-e30 325ix (gf)
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Old 03-22-2015, 10:49 AM
osc osc is offline
Join Date: Mar 2015
Location: London
Posts: 3
osc is on a distinguished road
I can't see the BMWxxxxx on the phone when I put the phone into pairing. I've tried 4 different phones.

I've connected the BT antenna onto the cream colour socket (tried the other sockets as well) but still the phone does not find anything.

Last edited by osc; 03-22-2015 at 01:03 PM.
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Old 03-25-2015, 10:47 AM
osc osc is offline
Join Date: Mar 2015
Location: London
Posts: 3
osc is on a distinguished road
Did a scan today and i got error:

"Main*antenna or*compensator/combiner disconnected*or*shortcut"

Could someone please confirm which antenna colours on the TCU need to be connected, and to what.

Also had "Prefit SIM denied in the network" but I think this one is due to no BMW Assist.
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