go to a letter and arrow up above the letter for capital.
Pressing up while on the letter of choice worked. Thanks!
This is an issue on my xbox series x
Did you try holding down the shift key?
Great solution! Spectrum requires (forces) you to have at least one upper case letter in your password. When the ROKU screen cursor is on a letter, press the UP ARROW, then press ENTER, and an upper case letter displays as part of your password. My system now logs me into the Spectrum app automatically. Someone wrote that they seemed to be "stuck" entering upper case letters. Maybe the DOWN arrow will toggle that out of UPPER case mode.
Select the letter you need. Immediately above that letter you will see it's capital letter version. Press the up button. Press okay.
Go to the lowercase letter and hit the up arrow to choose the capital letter.