I replaced a battery after failure on a DM42 and get the following screen
Release Keys
[_ _ ] 43 - 00
Press [EXIT]+[F6] to exit
Pressing EXIT F6 in any sequence of on /hold etc has no effect
I''ve changed the battery again and put on USB power with the same effect
any body had this problem or have any idea how to reset the calculator
thanks
Reset after battery failure
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- Posts: 7
- Joined: Mon Aug 02, 2021 12:48 pm
Re: Reset after battery failure
For avoidance of doubt i have tried resetting it using the key on the reverse side without effect
Re: Reset after battery failure
I had a dead battery on my DM41 some months ago. Replacing the battery resulted in crazy behaviour like yours but not the same key combination thing. I let the DM41 without battery for an hour and the problems were solved
HP41C (2x), HP41CV, HP41CX, DM41X β, DM41X, DM42, HP11C, HP48G, HP97
Re: Reset after battery failure
Maybe it is a good idea to connect the DM42 via a USB-cable to a pc before removing the coin cell battery from the DM42.
73, Nissen
73, Nissen