OK thank you I will look up the datasheet again. What I can tell you is that the circuit around is working properly, it's a code switch applied to P1.2-P1.5 . All the other inputs are working properly. And I get the same behaviour when reconnecting P1.2 with for example P1.3 . Also, it is defently the code running on the device. I will reduce the code to the initialization and check again so I can be sure there is no part in the software messing things up. thanks so far I will update you later.
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