HP15C displays gibberish. Is it broken?

[Valentin Albillo]

(10-03-2020 05:08 PM)rprosperi Wrote:  You can also use the built-in self-test, described here:

This person says that he/she has "the opportunity to buy" the calc so I take it he/she doesn't have the calc available to perform the manipulations you and Maximilian suggest.

Perhaps asking the seller to perform them could be attempted.

Regards.
V.