Before you send your calculator off to get it fix, please try this Ti 84 plus reset. If after preforming this reset and, installing the OS, and the problem with the pixels is still present then look for a replacement. The resets described in these troubleshooting steps will cause a loss of applications, programs and data. If at all possible please create a backup using TI Connect™ first. Remove all of the batteries including the round lithium battery for 5 minutes. After the 5 minute period, reinsert all of the batteries and turn the calculator on. Adjust the contrast if necessary. If this reset does not work to clear the problem then read further.
Sorry to hear about your broken screen. Some people replace the screen on their own. I feel this is a bad idea, and this procedure may fail, and sometimes does not look pretty. You will be much better off to contact Texas Instruments for replacement even if (Out of Warrenty). It usually cost about ($75 for a Ti89) and, probably even less for a Ti84 plus depending on their rating usage of your calculator. For the price you pay to have a repair shop fix your calculator, you'll be much better off going through Texas Instruments. If your calculator is still under warranty it might only cost you shipping. Plus, Texas Instruments work will be guaranteed, instead of taking the chance of having your calculator rigged together. First, thing to do if you seek replacement by Texas Instruments is to contact Texas Instruments, and fill out a request for a Returned Material Authorization (RMA) number for a product replacement. You can start that process by clicking here! Once your at their web site double click the icon Customer Support Form. Simply fill out their TI-cares Customer Assistance form. They will respond quickly with an email. All you have to do is reply to that email, and you will be given a RMA number and further instructions.
reinsert the AAA battery and then turn the calculator on. The calculator should display the
message "RAM Cleared". Release the [CLEAR] key and then press it one more time to remove the message.
"Waiting...Please install calculator software now". Follow the instructions for the
TI-83 family or TI-84 Plus family to reinstall the calculator operating system.
To contact Customer Service with out going to the Texas Instruments web site send an email to [email protected] or call 1-800 TI CARES (1-800-842-2737) Monday - Thursday 8:00am - 7:00pm or Friday 10:00am - 7:00pm Central Standard Time.
You can copy and go to the site (listed below), and you wil be able to select and, contact a repair pro in your area. I recommend sending back to the Texas Instruments but, you may find a repair shop in your area that is satisfactory to you. Once at this site you will see, Find a "Select a Repair Pro". Click open and select, "Computer and Laptop Tech". Next, stroll right, and you will see, "Near". Simply type in your zip code and, left mouse click, "Search". This will bring up a few repair shops for you to contact that might work on your calculator.
http://www.fixya.com/repair
You can also try any Radio Shack.
You can get the latest copy of Ti84 Plus 2.55v. MP OS, by going to my link below. Just follow Procedure 1. Plus a lot of other useful information about Ti Connect and, Windows OS at my link. The Ti OSDownloader sometimes does not give you the latest OS copy but, I will.
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