Original post by: TheLastMillennial ,
Hi, does your computer recognize your calculator when you plug it in? If so, then there’s definitely a hardware problem with the screen and you’ll need to [https://education.ti.com/en/customer-support|contact TI Cares] to get a replacement calculator. Thankfully your calculator is still covered under the 1 year warranty. If you want, you can try to run a LCD self test to see if it changes your screen at all. To do this: # Turn the calculator on, then press [mode]>[alpha]>[s]. (If you’d like a video tutorial, I have one [https://youtu.be/G1PR43Ol9T8|here].) # Then press [enter] 3 times. # Now press . # The self test will start. Press [enter] slowly 8 times to cycle through each test. # Press [enter] one more time to quit. There may be a small chance that this is a software problem and I’d suggest following [guide|111572] just in case.