How can i override the green keys; for ex. the question mark key and apostrophe

ust press the CTRL+SHIFT keys and you will switch from French to English

I’m happy to assist further over the phone at https://www.6ya.com/expert/sherri_bf92738d7f5863ad

Apostrophe key is next to the enter key

I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309

You just need to turn off the num lock on your keyboard, It will work nicely.

Sounds like a defective keyboard. I seen issues when pressing a button it will trigger another key to be pushed or nothign displays at all. Try replacing keyboard since they are relatively cheap. othersie maybe a software issue

You have a key, the label of which is the degree sign, the apostrophe and the double quotation mark. It is located between the change sign key (-) and the [HYP] key.

To enter an angle with degrees, minutes and seconds you use the key to separate between numbers
Ex: 18 deg 0' 45" you press 18 [Deg ' "] 0 [Deg ' "]45 [Deg ' "] [=] As you type the calculator displays 18 deg 0 deg 45 deg but the result will show correctly. You have to press the key after the seconds figure, otherwise you get a syntax error.

While the foregoing result is still in answer memory, if you press the [Deg ' "] key the result will be displayed in decimal degrees.

The key is used to enter the DMS values and also to toggle between DMS and D.D.

Sorry, text was posted as clarification request. Here it is

You have a key, the label of which is the degree sign, the apostrophe and the double quotation mark. It is located between the change sign key (-) and the [HYP] key.

To enter an angle with degrees, minutes and seconds you use the key to separate between numbers
Ex: 18 deg 0' 45" you press 18 [Deg ' "] 0 [Deg ' "]45 [Deg ' "] [=] As you type the calculator displays 18 deg 0 deg 45 deg but the result will show correctly. You have to press the key after the seconds figure, otherwise you get a syntax error.

While the foregoing result is still in answer memory, if you press the [Deg ' "] key the result will be displayed in decimal degrees.

The key is used to enter the DMS values and also to toggle between DMS and D.D.

It seems likely that you touched the CTRL key while pressing the apostrophe key, which creates a shortcut to an accented letter eg CTRL+',e will give ?.

Try Ctrl + e again to see if it goes away..cheers

I just figured this out. Hold down your left shift key, then press CTRL. It may take a couple of times for it to work, but it will eventually.

try hitting the left alt and the left shift button together, then try it out by pressing shift question mark. I had the exact same problem and i think you can alternate between french and english keys by hitting these two buttons together.