![]() ![]() You are probably trying to install Ndless v3.1 on OS v3.2 or higher. Student Software displays the error message “The operating system file is corrupted or invalid. Please go to education.ti.com to get a new OS file.” If the error message still appears, try to reboot the computer. ![]() Close and reopen Student Software if you want to be able to continue to use it. No more steps are required and you can start using native programs. ![]() The popup on the calculator side should confirm the success of the installation. Student Software displays the error message “the handheld is not responding”ĭon’t worry, this message will always appear at the end of the installation. You must update to OS 3.6 and use the latest Ndless v3.6. Unfortunately OS 3.2.4 includes an anti-downgrade protection, and makes Ndless v3.1 impossible to install on some newly bought calculators. OS 3.1 is required for Ndless v3.1 to work. I can’t downgrade from OS 3.2.4 to OS 3.1 It has notbeen updated yet for Ndless v3.6, but you may post a comment to ask for help. However, the HP Prime has its share of bugs too (although the calculator is fairly recent) and misses some features important for math and science outside North America.This guide helps you to determine and solve problems encountered when installing Ndless v3.1. It can be a nice alternative for those who wants more freedom for programming. While ASM and C are not yet possible on the HP Prime, it appears that the calculator has little protection against third-party hacks and it looks more open than the TI-Nspire CX. Recently, the HP Prime firmware also got updated, fixing many issues and adding some features. If you do not plan to use Ndless programs such as nDoom, Nover, nGL, Crafti, the Game Boy and NES emulators or many more advanced softwares, then here are the download links: OS TI-Nspire CX CAS 3.9.0.461 OS TI-Nspire CX 3.9.0.461 OS TI-Nspire CAS 3.9.0.461 OS TI-Nspire 3.9.0.461 Remember that when a new TI-Nspire OS comes out, it can take nearly a year before a compatible Ndless version comes out for it and such Ndless release is quickly followed by yet another TI-Nspire OS update by Texas Instruments, so if you upgrade now, it might take a very long while, if not forever, before you can install Ndless again. It is also unclear yet if the older Nspire CX hardware A through I can still circumvent the anti-downgrade protection by flashing Boot2 3.1 or using nLaunchy, so even if you have an older model, you should still wait before upgrading in case. It is unclear if the bugs present in OS 3.6 (some of which have been around for several years) have been fixed. However, it blocks downgrades to OS 3.6, as well as Ndless, so do not upgrade if you still plan to use Ndless in the future! According to TI-Planet and the T3-Europe website, this OS update, despite the high version jump, seems more like a minor update on the functionality end, but a major security update, meaning that it might have been released mainly to block Ndless, something common from TI-Nspire OS updates. It is 10 KB larger than OS 3.6, meaning that it should not be a big issue for people concerned about space. Version number dates from May 16th and is 3.9.0.461. TI-Nspire OS 3.9 is now available on Texas Instruments servers, although since the release date is set to June 4th, it is not listed yet on their official website. ![]()
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