Overtheairupdate*.
We will update software, if you need
update tracker, please install memory card
(TF), and send SMS
“123456ldu,server=http://www.***.com/
down/vpj.bin,en=72”. After you receive
3pcs of related message, it means updated
successfully.
Notice:Need about 5 min to do
updating.
“***“it represent the server domain of
the equipment supplier