These are the default settings of the trackers, following are the tips, please fullscreen to read more convenient. 

OldPassword:******; (Only support 6 digits)                        
NewPassword:******; (Only support 6 digits)
admin:;;;;; (Support set 5 admin numbers)
timezone:8.00; (from -12 to 12)
apn:cmnet;;; (APN;user;password;)
adminip:202.104.150.75:9000; (IP:port)
gprs:0; (0:sms,1:gprs)
tcpudp:0,0; (First:0 answer,1 no answer; Second:0 TCP,1 UDP)
sleep:1; (0:sleep time,1:sleep shock)




Following is the adjusted settings

OldPassword:123456; (Only support 6 digits)                     *Input the current password here, and need to input every time.
NewPassword:******; (Only support 6 digits)                     *This is to change the password, no input if you don't want to change the password. and if changed, pls input this password when you                                                                   *adjust settings next time. 
admin:10086;13800138000;10010;;; (Support set 5 admin numbers)  *This is to add the authorized phone number, format can't be changed, otherwise, adjust will fail, input authorized phone number                                                                        before each semicolon. 
timezone:-8.00; (from -12 to 12)                                *This is to change the time zone, default is +8, adjustable between -12~12.
apn:cmwap;00;11; (APN;user;password;)                           *This is to change APN, user name and passsword. It varies depends on carrier, please check with local carrier."cmwap" is APN,ÊÇAPN "00" is user name "11" is password
adminip:100.100.100.100:8888; (IP:port)                         *This is the IP of the web server.
gprs:1; (0:sms,1:gprs)                                          *This is to adjust the working mode,input "1" to use gprs and input "0" to use SMS.
tcpudp:0,0; (First:0 answer,1 no answer; Second:0 TCP,1 UDP)    *This is to adjust TCP or UDP, and no need adjust it.
sleep:1; (0:sleep time,1:sleep shock)                           *This is to adjust tracker to sleep by time or by shock sensor.input "0" to choose sleep by time, and fall asleep if no operations in                                                                  5 minutes, and it can awake by calling or SMS command;input "1" to choose sleep by shock sensor and can awake by vibration. Please                                                                    check user manual for details. 