We purchased 3 PCS from TI Store, and the test found that 1 PCS had no output and could not be run. Please help to provide advice.
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It appears this one board may have a hard failure. If you bought this from a distributor, you will have to work with them to get a replacement. If you bought it from the TI Store, the following link has the details and a link to the form to start the return process. Once you are on the returns and refunds page of the TI Store look for the hyperlink which says: TI store customer support form.