HP41CL Secondary MMU Lockup

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HP41CL Secondary MMU Lockup

08-27-2021, 05:56 PM (This post was last modified: 08-27-2021 06:02 PM by Howard Owen.)

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Howard Owen Offline

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HP41CL Secondary MMU Lockup

I dusted off my old 41CL yesterday and was playing around with the secondary MMU settings. I accidentally swapped in an undefined configuration and the calculator locked up. Removing the batteries for a time got me a MEMORY LOST. After that, executing "MMUDIS MMUCLR "YFNZ" PLUG1L MMUEN locks up the calculator again. Have I bricked my expensive tech toy?

P.S. This is v5 hardware. The YFNZ version is 4G

Regards,
Howard

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Messages In This Thread

HP41CL Secondary MMU Lockup - Howard Owen - 08-27-2021 05:56 PM

RE: HP41CL Secondary MMU Lockup - Sylvain Cote - 08-27-2021, 06:09 PM

RE: HP41CL Secondary MMU Lockup - Howard Owen - 08-27-2021, 06:23 PM

RE: HP41CL Secondary MMU Lockup - Sylvain Cote - 08-27-2021, 07:12 PM

RE: HP41CL Secondary MMU Lockup - Howard Owen - 08-27-2021, 08:23 PM

RE: HP41CL Secondary MMU Lockup - Sylvain Cote - 08-27-2021, 07:41 PM

RE: HP41CL Secondary MMU Lockup - Geoff Quickfall - 09-05-2021, 05:28 AM

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