Why cant i connect to my TI-84?

so i got (stole) this TI-84 Calculator from school….no disc, calculator only. so i went home plugged it in but it wouldn’t let me explore its content unless i had the software, so i check online, found the software and downloaded it but when it tries to connect to the calculator it can never find it. please help!

ps: if you can, can you tell me any coordinates for the calculator to make a funny graph

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