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Calculator Community => TI Calculators => Topic started by: Ivan Sabev on January 15, 2017, 05:25:45 pm

Title: Downgrading a TI-Nspire CAS Touchpad to OS 3.6
Post by: Ivan Sabev on January 15, 2017, 05:25:45 pm
Hello! I recently bought a used TI-Nspire, and it came with OS 3.9. It is hardware revision A, so I believe it should be able to run lower OSes. So is there anyway I can downgrade? Thanks!
Title: Re: Downgrading a TI-Nspire CAS Touchpad to OS 3.6
Post by: Legimet on January 16, 2017, 01:36:02 pm
You can install Ndless and use nsNandMgr to remove the downgrade protection, then install OS 3.6. You can also use nBoot+ControlX  or nLaunchy which can automatically install Ndless for you.