ST-901
Try RESET command
Already tried ...
I took the SIM card and put it in a phone and it is receiving and sending SMS's.
When returning the SIM into the unit, the leds (blue and yellow) are on (steady) but no answer (not even the SET OK ...)
Make sure the SIM is active. Insert into phone to confirm.
Yes, the SIM is active, I checked it in a cellphone ... it is receiving and sending SMS's.
How do I reset this device to factory settings ?
I need to reset the phone numbers and passwords