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Most custom ROM-s have problems with Stk.apk (the SIM toolkit part of Android) not functioning properly. The question is not the missing application (running Oxygen, I have the app but it is not working), but something systematic (dependency on RIL?) I'd like to know why so, and what can be made about it?

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I would have tagged the post with "stk" if I could... –  martin Oct 17 '11 at 11:16
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I would name the new tag (if I could) "sim-toolkit" - this one is used at Stackoverflow. BTW: On my Desire (InsertCoin CM7/STOCK 1.1.2) STK seems to work. –  Robert Oct 17 '11 at 11:44
    
After reading up on this, it seems that Android itself has extremely limited support for this, so it's a case of kicking Google into supporting this –  Joe Simpson Oct 17 '11 at 14:48

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Well, the SIM toolkit is initialized in 2 modes, dedicated mode and raw mode. SIM toolkit also depends on the modem you are using. If the modem does not support the dedicated mode, you won't be able to see the SIM toolkit in your UI as it sends raw data to the upper layer (URCs) in raw mode.

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