Solution 37275: Troubleshooting a TI-Nspire CX or TI-Nspire CX CAS Calculator That Will Not Turn On, Charge or Function Properly.
...If the TI-Nspire CX or TI-Nspire CX CAS calculator will not turn on or charge please follow the steps below: 1) Attempt to charge the calculator by connecting to a computer or wall adapter. If the calculator boots up check if the charge indicator displays a low charge, if it does let the calcul...https://education.ti.com/en/customer-support/knowledge-base/ti-nspire-family/troubleshooting-messages-unexpected-results/37275
Solution 33711: Best Care Practices for TI Products With a TI Rechargeable Battery.
...ors: environment, storage, the number of charge/discharge cycles, and level of discharge/charge. To extend battery lifespan and battery life, we recommend following these guidelines: 1. Keep TI calculators in a cool, dry place, as close to room temperature as possible Batteries are design...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/general-information/33711
Solution 37295: Troubleshooting a TI-84 Plus CE or TI-84 Plus C Silver Edition That Will Not Turn On, Charge, Function Properly, Displays a “Validating Operating System…” Message or Flashes White.
...escribed in the troubleshooting steps below may cause a loss of applications, programs, and data. If at all possible, please backup all your files by copying data files and programs from your calculator to a folder on your computer using TI Connect CE™ Software. 1) Attempt to charge the calculato...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/troubleshooting-messages-unexpected-results/37295
Solution 13884: Press-To-Test Functionality Available for the TI-84 Plus and TI-84 Plus Silver Edition.
... the default settings, move the cursor over the desired setting and press [ENTER]. 4) Press [ZOOM] (beneath OK on the screen) to select OK. The Reset Complete screen displays the selected options. Version 2.53MP and earlier Version 2.55MP 5) Press [APPS] to verify that Ap...https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/13884