Transfer ndless_installer_4.5.5-6.2.0-6.4.0.tns into a folder named “ndless“ (top-level)
Transfer ndless_resources.tns into the same folder
Open the installer, press any alphanumeric key and wait
If it fails or reboots, try again until it works
Have fun!

Persistent Installation

A persistent installation means Ndless will automatically load when you turn on or reboot the calculator, removing the need to run the installer every time.

Warning: While this feature has been tested properly, the Ndless team is not responsible for any data loss, reboot-looped calculators, or any damage incurred to your Nspire.

Ensure Ndless is not currently installed (reset your calculator first if it is).
Transfer persistent_6.2.0-6.4.0.tns into the “ndless“ folder
Rename the file you just transferred to persistent.tns
Transfer ndless_resources.tns into the same folder
Open persistent.tns and wait for the automatic installation
Have fun!
- If you get stuck in a reboot loop, hold [ESC]. If that fails, format your filesystem via the maintenance menu.
- By running the ndless_resources.tns file after installing, you can uninstall the loader as well.

OS 4.5.5.79

Prerequisites: OS 4.5.5.79 on CX or CX CAS

Determine your “boot1” version (needed later).
- Press [Home] > [5] (Settings) > [4] (Status) > About button.
- Here is a YouTube video for this.
Transfer ndless_installer_4.5.5-6.2.0-6.4.0.tns into a folder named “ndless“ (top-level)
Transfer ndless_resources.tns into the same folder
Open the installer, press the corresponding key for your boot1 version and wait
If it fails or reboots, try again until it works
Have fun!

OS 5.2.0.771 + 5.3.0.564

Prerequisites: OS 5.2.0.771 or 5.3.0.564 on CX II, CX II-T or CX II CAS

Transfer ndless_installer_5.2.0-5.3.0.tns into a folder named “ndless“ (top-level)
Transfer ndless_resources.tns into the same folder
Open the installer and wait
Have fun!

OS 4.5.3.14 + 4.5.4.48

Prerequisites: OS 4.5.3.14 or 4.5.4.48 on CX or CX CAS

Transfer ndless_installer_4.5.3-4.5.4.tns into a folder named “ndless“ (top-level)
Transfer ndless_resources.tns into the same folder
Open the installer and wait
Have fun!

OS 4.5.0

Prerequisites: OS 4.5.0 on CX or CX CAS

Transfer ndless_installer_4.5.0.tns into a folder named “ndless“ (top-level)
Transfer ndless_resources.tns into the same folder
Open the installer and wait
Have fun!

OS 4.4.0

Prerequisites: OS 4.4.0 on CX or CX CAS

Transfer ndless_installer_4.4.0.tns into a folder named “ndless“ (top-level)
Transfer ndless_resources.tns into the same folder
Open the installer
Close the installer with Ctrl+W
Have fun!

OS 4.2.0

Prerequisites: OS 4.2.0 on CX or CX CAS

Transfer ndless_installer_4.2.0_cx.tns or ndless_installer_4.2.0_cascx.tns into a folder named “ndless“ (top-level)
Transfer ndless_resources.tns into the same folder
Open the installer
Close the installer with Ctrl+W
Have fun!

OS 4.0.3

Prerequisites: OS 4.0.3 on CX or CX CAS

Transfer ndless_installer_4.0.3_cx.tns or ndless_installer_4.0.3_cascx.tns into a folder named “ndless“ (top-level)
Transfer ndless_resources.tns into the same folder
Open the installer
Close the installer with Ctrl+W
Have fun!

OS 3.9.1

Prerequisites: OS 3.9.1 on CX and CX CAS

Transfer the ndless_installer_3.9.1.tns file into a folder named “ndless“ (top-level)
Transfer ndless_resources.tns into the same folder
Disconnect your USB cable
Open the installer
If you get a message that says “Insufficient memory”, reset your calculator and try again!
Connect the handheld to your computer!
Close the installer with Ctrl+W
Have fun!

OS 3.9.0

Prerequisites: OS 3.9.0 on Clickpad (CAS/non-CAS) or Touchpad (CAS/non-CAS)

For CX and CX CAS please install 3.9.1.

Transfer ndless_installer_3.9.0_classic_new.tns into a folder named “ndless“ (top-level)
Transfer ndless_resources.tns into the same folder
Open the installer
Close the installer with Ctrl+W
Have fun!

OS 3.6

Prerequisites: OS 3.6

Transfer ndless_installer.tns and ndless_resources.tns into a folder named “ndless“ (top-level)
Open the installer
Press the menu button
Have fun!

Uninstalling

To uninstall Ndless, simply run the ndless_resources.tns file and select “Yes”, after which the device will reboot.

Development team

Lead maintainer: Fabian Vogt aka Vogtinator - < vogtinator at ritter dash vogt dot de >

Creators: Geoffrey Anneheim aka geogeo - < geoffrey dot anneheim at free dot fr > Olivier Armand aka ExtendeD - < olivier dot calc at gmail dot com >

Contributors and testers: Adriweb, bsl, cherpixel, critor, delta, Excale, Goplat, hoffa, Jim Bauwens, Legimet, Levak, Lionel Debroux, lkj, sasdallas, satyamedh, tangrs, timmycraft, vailithree… and many others.
More contributions can be seen on the GitHub repo.

Ndless is brought to you by https://codewalr.us, https://www.omnimaga.org and https://tiplanet.org

Legal stuff

Most of the work is covered by the Mozilla Public License, version 1.1 (MPL). Please read the file Mozilla-Public-License-v1.1.html carefully before distributing any part of Ndless, with or without modification.

Some parts are covered by other licenses. Others are in the public domain. These parts are identified by the files LICENSE.txt or LICENSE.html in the sub-directory.