Using TMC in Garmin nuvi for free

**lolypop000** · 13th November 2012, 12:29 AM

Anybody found out how can we erase subscription from GTM antenna?
If you add 15 subscription in GTM25 you cant add no more subscription.
If you create key with jetmouse with 0 on the end this only disable subscription but wont delite and if you try add new subscription,you cant.
If you create key for the same subscription where you add 0 at the end and now add 1 you have back this subscription.

So if you add 0 on all 15 subscription and you try to add new subscription,you cant, becouse your GTM antenna is full, but you can enable back all this 15 subscription if you add 1 on the end.

Anybody know how can we full erase all subscription from antenna?

**Giomen** · 13th November 2012, 01:56 AM

Originally Posted by lolypop000

If you create key with jetmouse with 0 on the end this only disable subscription but wont delite and if you try add new subscription,you cant.

In some time I was play with subscription and had a overflow too. If you create key with jetmouse with 0 a subscription was not delete at once. Kind of it was in this thread. But in any case I was successful delete all superfluous and activate useful on Nuvi 765 with jetmouse with 0...

**lolypop000** · 13th November 2012, 12:17 PM

Nuvi 765 with GTM21?
On 765 subscription is stored in nuvi, but on GTM25 is stored in antenna.
If you scan region over SD before you attach GTM or when you attach all region is the same becouse TMC reciver is not activated in preboot.
We must find solution to erase subscription from GTM25,26,35,36.

**Giomen** · 14th November 2012, 02:04 AM

Originally Posted by lolypop000

On 765 subscription is stored in nuvi, but on GTM25 is stored in antenna.

It is confuse for me! I always activated all subscription on GTM 20/21 only on one - my device! Use it as keyboard only in another word. I even do not know which receiver from which device!?

**lolypop000** · 14th November 2012, 12:38 PM

If you unlock GTM21 with your nuvi and add GTM21 on another nuvi you must unlock TMC again on another nuvi.
If you unlock GTM25 on your nuvi and add GTM25 on another nuvi you dont need to unlock again becouse subscription is stored in antenna and will work on all nuvi.

**Giomen** · 15th November 2012, 02:12 AM

Originally Posted by lolypop000

If you unlock GTM21 with your nuvi and add GTM21 on another nuvi you must unlock TMC again on another nuvi.

I will check it so I do not have this problem!!! I get unlock for TMC with unique ID of TMC reciever from Garmin.com and after this TMC receiver work with all Nuvi. As I write above we have only own cradle and power cord with build-in TMC in car but Nuvi may be any that comes handy. It is work fine.

May be you unlock your TMC receiver with ID from Nuvi?

P.S. I check it after returning to home. I have a dozen of old TMC receiver. You know after return Garmin with warranty you may except the device keep the whole rest yourself.

**Giomen** · 12th December 2012, 11:44 PM

Originally Posted by lolypop000

If you unlock GTM21 with your nuvi and add GTM21 on another nuvi you must unlock TMC again on another nuvi.
If you unlock GTM25 on your nuvi and add GTM25 on another nuvi you dont need to unlock again becouse subscription is stored in antenna and will work on all nuvi.

I check on Nuvi 765 - any GTM21 reciever with own unlocked subscriptions work with any Nuvi without problem! I am sure that GTM intentionally designed to be a stand-alone unit...

**kraipit555** · 21st November 2012, 05:32 AM

Anybody found out. How can we find FID, PID, RgnID.
Such as Belgium FID = 13827 come from?
I believe it would be useful apply to other countries not in the list.
Thank you.