I have tried to find any documentation regarding the data received from my gps tracker. Being a chinese model I could not find any clue to decode the string send by the gps tracker. Neither found any discussion/QA regarding this type of sample data received. The format is 787811010867946050055804005a212200067c6d0d0a.From this string I found that 867946050055804 is the imei number, but unable to decode the others.