Hi List,

When using MITM it is possible to set the SIMtrace<->phone voltage levels using ATR, giving a clear-cut way to solve the incorrect I/O level problem:

See byte TA(3) C7->C2

orig ATR from card:
http://smartcard-atr.appspot.com/parse?ATR=3B9F95801FC78031E073FE2113574A330530323402A3

modded to select only 3V:
http://smartcard-atr.appspot.com/parse?ATR=3B9F95801FC28031E073FE2113574A330530323402A6


Cheers,
Tom


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