I have received a new batch of TER-EZ910-v4, but we have a problem with the GPS
Sometimes the GPS acts normal, but most of the time any AT commands used to setup the GPS fails for example :
AT$GPSP=1 returns ERROR,
AT$GPSLSR=2,3 returns ERROR,
AT$GPSRST returns ERROR,
AT$GPSACP returns either nothing or ,,,,,,1,,,,,,.
This is occuring on every device in this batch. The previous batch we received did not have this problem.