Question about HP 48gx Calculator

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General Use Can someone please tell me how to run a memory check and self check or whatever else I would need to do to check my unit before selling it on Ebay? I want to be fair to the new owner.

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The self-tests are described in the manual

Testing Calculator Operation . . . . . . . . . . .. A-9
Self-Test . . . . . . . . . . . . . . . . . . . . . A-I0
Keyboard Test . . . . . . . . . . . . . . . . .. A-ll
Port RAM Test . . . . . . . . . . . . . . . . .. A-12
IR Loop-Back Test . . . . . . . . . . . . . . .. A-13
Serial Loop-Back Test . . . . . . . . . . . . . .. A-14

You can download the manual from or the HP website.

I would personally include photos of the screen during the test (e.g. "KBD OK").

Posted on Oct 28, 2008


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Posted on Jan 02, 2017


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