Re: How to detect early HP-41C ROM versions/bugs? Message #2 Posted by gene on 14 Mar 2006, 10:31 a.m., in response to message #1 by Arne Helme
Bug 2: Do this: 997 ENTER 1.23 STO IND Y
If it errors out, you do not have bug 2.
If it seems to work, congrat's...you have bug 2.
Bug 3: 49 STO 00. SF IND 00.
If it errors out, you do not have bug 3.
If it seems to work (by turning on the low battery indicator), then you have bug 3.
Much easier/quicker than viewing the ROM versions. :-)
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