I recently bought a Sinotrack ST-901 device. There are some issues.
1) Its default setting is GPRS mode, but I need to switch to SMS mode. I sent the command 700xxxx, but there was no response from the device, and the working mode did not change.
2) Following commands also not work for me,
669xxxx
211xxxx
886xxxx
887xxxx
888xxxx
8889xxxx
150xxxx
3) I would like to know the way to activate the low battery alarm via SMS.
4) Are there any methods to factory reset the device?
I appreciate if someone can respond to my issues.
Thank you!