Roaming data on sim for sinotrack gps not working

ma7u

Hi everyone,
I’m trying to figure out if Sinotrack GPS devices work properly with SIM cards in international roaming.
On my phone, when I travel between countries, my carrier always uses the same APN (the Italian one). Since it’s a publicly reachable address, I don’t need to change it manually.
So I’m wondering: why does the Sinotrack GPS seem to require changing the APN when going abroad?
Here’s my problem: now that I’m abroad with the SIM card in roaming, the Sinotrack won’t connect. The yellow LED keeps blinking and it never registers on the network.
Has anyone here used a Sinotrack device with a SIM in roaming in other countries?
Any advice or solutions to make it work without changing the APN each time?
Thanks in advance for any help!

ma7u

up!

ma7u

Update:
the tracker no longer reads any SIM card and the LED is blinking yellow.
I tested the same SIM on another SinoTrack ST-905 and it connects to the network correctly.
I also tried several different SIM cards with the faulty tracker, but none of them work.
Since it doesn’t get any signal, I can’t send the SMS configuration commands.

Questions:
Is there any way to connect/configure the SinoTrack without GSM signal or SMS?
Is there a hard reset or another method (e.g. via cable) that works without a SIM?
Does the yellow blinking LED confirm “no GSM” specifically, or could it mean something else?

rost

Hello @ma7u ,

Thanks for your post.

It looks like such questions, should be addressed to the manufacturer of the device direclty.
Unfortunately, we do not have information about Sinotrack configuration without SMS or somehow else.

But by the way, probably someone on this forum know anything about that. So, you can wait for an answer here.