Wrong Instruction Class (6E 00) when with APDU for SELECT installer applet

Hi
I started up with developing SIM Application Toolkit Applets last week.
I compiled and converted a sample applet, but I can't get to load it onto the SIM card.
I am using a SIM reader/writer to issue the APDU commands in the script file that I had generated using the scriptgen command of the Java Card Development Kit, but I keep getting response 6E 00 (ie wrong instruction class) when I first issue the APDU that selects the Installer applet {00 A4 04 00 09 a0 00 00 00 62 03 01 08 01 (9000)}.
I also tried using GPshell to install my applet to the SIM card, but I would also get Wrong Instruction Class when it tries to issue the APDU that does the installer applet selection.
I don't know if I'm doing the right thing to load my applet to the SIM or if I'm completely off track, and if I am doing this right, I don't know why it isn't working.
Thanks in advance.
Best, Shadi AKIKI

Shadi_Akiki wrote:
Hi
I started up with developing SIM Application Toolkit Applets last week.
I compiled and converted a sample applet, but I can't get to load it onto the SIM card.
I am using a SIM reader/writer to issue the APDU commands in the script file that I had generated using the scriptgen command of the Java Card Development Kit, but I keep getting response 6E 00 (ie wrong instruction class) when I first issue the APDU that selects the Installer applet {00 A4 04 00 09 a0 00 00 00 62 03 01 08 01 (9000)}.
I also tried using GPshell to install my applet to the SIM card, but I would also get Wrong Instruction Class when it tries to issue the APDU that does the installer applet selection.
I don't know if I'm doing the right thing to load my applet to the SIM or if I'm completely off track, and if I am doing this right, I don't know why it isn't working.
Thanks in advance.
Best, Shadi AKIKIcan someone please tell me what do does bytes mean: {00 A4 04 00 09 a0 00 00 00 62 03 01 08 01 (9000)}.
I know cla, ins ter p1 in p2... but dont know how to set fid, size and so one when i am creating file... help

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