Author Topic: When is the DEL trick necessary?  (Read 1880 times)

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Offline Deep Toaster

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When is the DEL trick necessary?
« on: July 26, 2014, 02:23:54 am »
So I just spent all day figuring out loading helper data from the archive for my Axe game. Of course there were plenty of crashes, but four (!) in particular were bad enough that I couldn't ten the calculator back on without doing the battery+DEL trick.

My archive seemed fine afterward, no lost variables or corruption or anything, but it got me wondering how I even got to that point (and so often). What would cause such a crash where pressing the ON button doesn't work anymore?




Offline Hooloovoo

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Re: When is the DEL trick necessary?
« Reply #1 on: July 26, 2014, 03:53:08 am »
A crash this severe is likely caused by the OS getting corrupted. The battery+[del] trick is something the boot code does so that the calc is recoverable if it has a broken OS. Loading data from archive shouldn't cause crashes like this though.
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Offline Deep Toaster

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Re: When is the DEL trick necessary?
« Reply #2 on: July 26, 2014, 01:05:45 pm »
My OS is fine AFAICT. All I do after getting the "please install operations system now" message is press ON to exit, and the unit works fine afterward.




Offline DJ Omnimaga

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Re: When is the DEL trick necessary?
« Reply #3 on: July 26, 2014, 01:27:00 pm »
Yeah I was always wondering that. I wonder if it has to do with the calc no longer being able to load the RAM clear routine or something?
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Offline Streetwalrus

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Re: When is the DEL trick necessary?
« Reply #4 on: July 26, 2014, 01:30:59 pm »
I suppose it's because it gets stuck into a state that doesn't make it initialize the hardware or something. I know that it will not always RAM clear when you pull a battery.