Forum TI-Planet.org

Hello,

I recently got a Ti-Nspire CX (non-cas) with the hardware revision AB and the OS version being 4.5.4.48. I got ndless running on it with KhiCAS. However, I tried to install nloader to boot CAS os, never realizing that the CAS os provided is 4.5.0.1180 and its not compatible, I have followed the guide perfectly until the last part about installing the os and noticed that it does not have the version for my calculator, It fails to install due to being older version and telling me there is no OS installed, I tried to boot into non-cas boot loader and flashing the original, it has flashed succeeded, but still wont boot and no os is detected regardless, I tried booting into diagnostic and deleting the OS and still have the same results, which is no OS is installed error

(apologies if this is long to read)

Hello again,

I have solved my issue and successfully got CAS running on it, Apparently after closer inspection, I found out that the min os is not erased yet, and it rejects any older CAS OS, To solve it, I just force it to accept the original os flash by holding CTRL+MENU+MINUS before turning it on and not releasing it when flashing the original OS, it (surprisingly) booted and I cleared the min os using BTmg and used nSwitchOS to flash the older OS

Anyways thanks for the resources in the forum!

PS. it will be nice if F9 is removed from the instructions, as it tells us to reset the calculator before more instructions! and might make the calculator fail to boot (scary)