01
Press these keys
2nd→↑/↓→2nd→+→1:About
Step 1 of 5. Press 2nd.
02
Walkthrough
- 1Brightness
Press and release 2nd, then tap ↑ to darken or ↓ to lighten.
- 2Battery
Read the battery indicator in the status bar; charge before an exam.
- 3OS information
Press 2nd → + (MEM) → 1:About.
03
Worked example
Confirm whether your calculator is on the documented CE operating system.
NORMAL FLOAT AUTO REAL MP
ABOUTTI-84 Plus CEOS: 5.xAnswerRecord the OS number shown on your own About screen.