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![HELP] Does anyone know how to remove this horizontal line? Bought this used TI-89 on Ebay. : r/TI_Calculators](https://i.redd.it/bqgia2kescu51.jpg "HELP] Does anyone know how to remove this horizontal line? Bought this used TI-89 on Ebay. : r/TI_Calculators")
HELP] Does anyone know how to remove this horizontal line? Bought this used TI-89 on Ebay. : r/TI_Calculators
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