crwdns2934241:0crwdne2934241:0 jayeff

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Hi @martinez25098

Here's a [https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/troubleshooting-messages-unexpected-results/40446|link] that explains what to try if there's a ''validating OS message'' on the screen.

If it still doesn't work after trying the solutions, as it is new, take it back and ask for a replacement or a refund.

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open