Problems with ST-901A command

Wanderson2 years ago

Good afternoon I have some st-901 devices and the engine stop and engine restart commands work well, but I bought some st-901A models it is not the st-901A+ that uses port 5015 but port 5013, I can block it but I cannot unlock on this model... Could anyone tell me where I can find the gprs command that is sent to this device? So I can create a command manually! Thanks.
(I've already tried with the manufacturer but they send me sms commands that I already have in the manual...)