Dear infinty, I tried to download AWS A5.17, A5.18, A5.19, A5.20 from the thread ( http://www.egpet.net/vb/threads/22003-Request-for-AWS-A5-17-A5-18-A5-20-A5-23) . But they have not been valid until now. Can you send me a copy to email dinhhoan05@gmail.com , please? Thank you very much and hope you have a nice day. Regards, Dinh Hoan