[removed]

[Lionel Debroux]

Up to OS 3.6, such trick didn't seem to cause any problem.

Maybe it didn't at some point later, but I remember from the OSLauncher era that it definitely did on OS 1.7.2741.

[critor]

Ah... no sorry in fact it doesn't work here.

Although the OS seems to work, trying to calculate anything just reboots the calculator.

Either I made a mistake...
Either there is another CAS/non-CAS protection...
Either it's because I have the non-CAS resource files installed, but in that case it's something relatively new - added since OS 3.6.

Having patches for 3.9-4.3 OSes would surely help to understand.


Check with your patched Nlaunchy if you can really calculate things.

[parrotgeek1]

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[critor]

There is another protection. EIGHT others. All checks of 900a002c in subtly different ways so you CAN'T patch them with one patch. There's a different one for the scratchpad vs saved documents!

Ah, great...

I was testing in the scratchpad.
But I've just checked and calculations are also crashing in real documents.

8 protections... so TI really doesn't want CAS on non-CAS.
Maybe there will be fewer protections in versions 4.3-3.6.

[parrotgeek1]

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[parrotgeek1]

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[Bisam]

Are you sure all these are protections ?
The OS might also check if CAS is present when using CAS functions which also can work on non-CAS.
When trying that, it returns a generic message instead of using the CAS version of the function.

[parrotgeek1]

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[critor]

update: a very skilled programmer on twitter is helping me automatically find and patch these

Great !
An anonymous programmer.

Did you check if there are also hundreds of protections to patch in older OS 3.6-4.3 ?

[parrotgeek1]

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