tkstar login

I have a problem with my TKstar TK905. 889nation slot login First time I set and use the default password 123456, the tracker works well Sms command, Apps Winnes and TKstar even Web access are good BUT after I change/edit the password via Web then the Sms not working any more Both Apps, Winnes and TKstar, can work with the new password but NOT the Sms command