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E15 Protection Error on TI-74

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Hi I tried using my TI-74 with the PC-Interface and was unable to load a file onto the unit.


I now have a E15 Protection error on my TI-74 and resetting it, taking out the batteries makes no difference!


Although there is nothing in memory if I try to run it I get the following error:


E14 at 32647 bad program type.


Any suggestions on what to do?




**Edit - I forgot about the New command, so need to answer!**

Edited by mutantcamel1979
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