Hey guys. I'm testing Sinotrack ST-901 but have some trouble with it.
My service provider is Google Fi. I only have nano SIM card so I manage to insert it with 3 pins touching the SIM card. I can see that the yellow LED is ON all the time which means GSM should be working. I tried to called the number and can receive a SMS from it reporting current location and speed. However, it doesn't responding to any SMS commands now. No RCONF
. No RESTART
.
Does anybody know how to fix that?
Somehow, I randomly received two messages of RCONF
response! But it disappeared after that. No idea what's going in.

Hey guys. I'm testing Sinotrack ST-901 but have some trouble with it.
My service provider is Google Fi. I only have nano SIM card so I manage to insert it with 3 pins touching the SIM card. I can see that the yellow LED is ON all the time which means GSM should be working. I tried to called the number and can receive a SMS from it reporting current location and speed. However, it doesn't responding to any SMS commands now. No
RCONF
. NoRESTART
.Does anybody know how to fix that?
Somehow, I randomly received two messages of
RCONF
response! But it disappeared after that. No idea what's going in.