lewando said:Have you tried MEM (2nd, +)> Reset > Defaults? This will preserve your programs.
To reset your calculator, press the reset button located on the back of the calculator. If your calculator does not have a reset button, you can also remove the batteries and put them back in to reset the calculator.
There could be a few reasons why your calculator is not turning on. First, check to make sure the batteries are inserted correctly and have enough charge. If the batteries are fine, there may be a problem with the internal circuitry of the calculator and it may need to be repaired or replaced.
If your calculator screen is frozen, try pressing the reset button or removing and reinserting the batteries. If that does not work, there may be a problem with the calculator's software and it may need to be updated or repaired.
If your calculator is displaying error messages, refer to the instruction manual to determine the cause of the error. Common causes may include incorrect input or a malfunctioning function. If the error persists, the calculator may need to be repaired.
It depends on the issue with your calculator. Simple problems such as a frozen screen or incorrect inputs can often be resolved by following the instructions in the manual or pressing the reset button. However, for more complex issues, it is best to seek professional help or contact the manufacturer for support.